gaspersic/freeCodeCamp
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

improve interviewing section titles

Browse Source
This commit is contained in:
Quincy Larson
2017-01-20 16:31:35 -06:00
parent e66c502fea
commit 3bb8c29019
5 changed files with 3 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

453
challenges/08-coding-interview-questions-and-take-home-assignments/coding-interview-algorithm-questions.json Normal file
View File

@ -0,0 +1,453 @@
{
"name": "Coding Interview Algorithm Questions",
"order": 10,
"time": "50 hours",
"helpRoom": "HelpJavaScript",
"challenges": [
{
"id": "aff0395860f5d3034dc0bfc9",
"title": "Validate US Telephone Numbers",
"description": [
"Return <code>true</code> if the passed string looks like a valid US phone number.",
"The user may fill out the form field any way they choose as long as it has the format of a valid US number. The following are examples of valid formats for US numbers (refer to the tests below for other variants):",
"<blockquote>555-555-5555\n(555)555-5555\n(555) 555-5555\n555 555 5555\n5555555555\n1 555 555 5555</blockquote>",
"For this challenge you will be presented with a string such as <code>800-692-7753</code> or <code>8oo-six427676;laskdjf</code>. Your job is to validate or reject the US phone number based on any combination of the formats provided above. The area code is required. If the country code is provided, you must confirm that the country code is <code>1</code>. Return <code>true</code> if the string is a valid US phone number; otherwise return <code>false</code>.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
],
"challengeSeed": [
"function telephoneCheck(str) {",
" // Good luck!",
" return true;",
"}",
"",
"",
"",
"telephoneCheck(\"555-555-5555\");"
],
"solutions": [
"var re = /^([+]?1[\\s]?)?((?:[(](?:[2-9]1[02-9]|[2-9][02-8][0-9])[)][\\s]?)|(?:(?:[2-9]1[02-9]|[2-9][02-8][0-9])[\\s.-]?)){1}([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2}[\\s.-]?){1}([0-9]{4}){1}$/;\n\nfunction telephoneCheck(str) {\n return re.test(str);\n}\n\ntelephoneCheck(\"555-555-5555\");"
],
"tests": [
"assert(typeof telephoneCheck(\"555-555-5555\") === \"boolean\", 'message: <code>telephoneCheck(\"555-555-5555\")</code> should return a boolean.');",
"assert(telephoneCheck(\"1 555-555-5555\") === true, 'message: <code>telephoneCheck(\"1 555-555-5555\")</code> should return true.');",
"assert(telephoneCheck(\"1 (555) 555-5555\") === true, 'message: <code>telephoneCheck(\"1 (555) 555-5555\")</code> should return true.');",
"assert(telephoneCheck(\"5555555555\") === true, 'message: <code>telephoneCheck(\"5555555555\")</code> should return true.');",
"assert(telephoneCheck(\"555-555-5555\") === true, 'message: <code>telephoneCheck(\"555-555-5555\")</code> should return true.');",
"assert(telephoneCheck(\"(555)555-5555\") === true, 'message: <code>telephoneCheck(\"(555)555-5555\")</code> should return true.');",
"assert(telephoneCheck(\"1(555)555-5555\") === true, 'message: <code>telephoneCheck(\"1(555)555-5555\")</code> should return true.');",
"assert(telephoneCheck(\"555-5555\") === false, 'message: <code>telephoneCheck(\"555-5555\")</code> should return false.');",
"assert(telephoneCheck(\"5555555\") === false, 'message: <code>telephoneCheck(\"5555555\")</code> should return false.');",
"assert(telephoneCheck(\"1 555)555-5555\") === false, 'message: <code>telephoneCheck(\"1 555)555-5555\")</code> should return false.');",
"assert(telephoneCheck(\"1 555 555 5555\") === true, 'message: <code>telephoneCheck(\"1 555 555 5555\")</code> should return true.');",
"assert(telephoneCheck(\"1 456 789 4444\") === true, 'message: <code>telephoneCheck(\"1 456 789 4444\")</code> should return true.');",
"assert(telephoneCheck(\"123**&!!asdf#\") === false, 'message: <code>telephoneCheck(\"123**&!!asdf#\")</code> should return false.');",
"assert(telephoneCheck(\"55555555\") === false, 'message: <code>telephoneCheck(\"55555555\")</code> should return false.');",
"assert(telephoneCheck(\"(6054756961)\") === false, 'message: <code>telephoneCheck(\"(6054756961)\")</code> should return false');",
"assert(telephoneCheck(\"2 (757) 622-7382\") === false, 'message: <code>telephoneCheck(\"2 (757) 622-7382\")</code> should return false.');",
"assert(telephoneCheck(\"0 (757) 622-7382\") === false, 'message: <code>telephoneCheck(\"0 (757) 622-7382\")</code> should return false.');",
"assert(telephoneCheck(\"-1 (757) 622-7382\") === false, 'message: <code>telephoneCheck(\"-1 (757) 622-7382\")</code> should return false');",
"assert(telephoneCheck(\"2 757 622-7382\") === false, 'message: <code>telephoneCheck(\"2 757 622-7382\")</code> should return false.');",
"assert(telephoneCheck(\"10 (757) 622-7382\") === false, 'message: <code>telephoneCheck(\"10 (757) 622-7382\")</code> should return false.');",
"assert(telephoneCheck(\"27576227382\") === false, 'message: <code>telephoneCheck(\"27576227382\")</code> should return false.');",
"assert(telephoneCheck(\"(275)76227382\") === false, 'message: <code>telephoneCheck(\"(275)76227382\")</code> should return false.');",
"assert(telephoneCheck(\"2(757)6227382\") === false, 'message: <code>telephoneCheck(\"2(757)6227382\")</code> should return false.');",
"assert(telephoneCheck(\"2(757)622-7382\") === false, 'message: <code>telephoneCheck(\"2(757)622-7382\")</code> should return false.');",
"assert(telephoneCheck(\"555)-555-5555\") === false, 'message: <code>telephoneCheck(\"555)-555-5555\")</code> should return false.');",
"assert(telephoneCheck(\"(555-555-5555\") === false, 'message: <code>telephoneCheck(\"(555-555-5555\")</code> should return false.');",
"assert(telephoneCheck(\"(555)5(55?)-5555\") === false, 'message: <code>telephoneCheck(\"(555)5(55?)-5555\")</code> should return false.');"
],
"type": "bonfire",
"MDNlinks": [
"RegExp"
],
"challengeType": 5,
"translations": {
"es": {
"title": "Valida Números Telefónicos de los EEUU",
"description": [
"Haz que la función devuelva true (verdadero) si el texto introducido parece un número válido en los EEUU.",
"El usuario debe llenar el campo del formulario de la forma que desee siempre y cuando tenga el formato de un número válido en los EEUU. Los números mostrados a continuación tienen formatos válidos en los EEUU:",
"<blockquote>555-555-5555\n(555)555-5555\n(555) 555-5555\n555 555 5555\n5555555555\n1 555 555 5555</blockquote>",
"Para esta prueba se te presentará una cadena de texto como por ejemplo: <code>800-692-7753</code> o <code>8oo-six427676;laskdjf</code>. Tu trabajo consiste en validar o rechazar el número telefónico tomando como base cualquier combinación de los formatos anteriormente presentados. El código de área es requrido. Si el código de país es provisto, debes confirmar que este es <code>1</code>. La función debe devolver true si la cadena de texto es un número telefónico válido en los EEUU; de lo contrario, debe devolver false.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado. Intenta programar en pareja. Escribe tu propio código."
]
},
"it": {
"title": "Verifica i numeri telefonici degli Stati Uniti",
"description": [
"Ritorna <code>true</code> se la stringa passata come argomento è un numero valido negli Stati Uniti.",
"L'utente può digitare qualunque stringa nel campo di inserimento, purchè sia un numero di telefono valido negli Stati Uniti. Qui sotto alcuni esempi di numeri di telefono validi negli Stati Uniti (fai riferimento ai test per le altre varianti):",
"<blockquote>555-555-5555\n(555)555-5555\n(555) 555-5555\n555 555 5555\n5555555555\n1 555 555 5555</blockquote>",
"In questo problema ti saranno presentate delle stringe come <code>800-692-7753</code> o <code>8oo-six427676;laskdjf</code>. Il tuo obiettivo è di validare o rigettare il numero di telefono basato su una qualunque combinazione dei formati specificati sopra. Il prefisso di zona è obbligatorio. Se il prefisso nazionale è presente, devi confermare che corrisponda a <code>1</code>. Ritorna <code>true</code> se la stringa è un numero di telefono valido negli Stati Uniti; altrimenti ritorna <code>false</code>.",
"Ricorda di usare <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leggi-Cerca-Chiedi</a> se rimani bloccato. Prova a programmare in coppia. Scrivi il codice da te."
]
},
"pt-br": {
"title": "Valida números telefônicos dos EUA",
"description": [
"Retorna <code>true</code> se a string passada é um número telefônico válido nos EUA.",
"O usuário pode preencher o campo de qualquer maneira com tanto que seja um número válido nos EUA. Os seguintes exemplos são formatos válidos para números de telefone nos EUA (baseie-se nos testes abaixo para outras variações):",
"<blockquote>555-555-5555\n(555)555-5555\n(555) 555-5555\n555 555 5555\n5555555555\n1 555 555 5555</blockquote>",
"Para esse desafio será dado a você uma string como <code>800-692-7753</code> ou <code>8oo-six427676;laskdjf</code>. Seu trabalho é validar ou rejeitar o número de telefone dos EUA baseado nos exmplos de formatos fornecidos acima. O código de área é obrigatório. Se o código do país for fornecido, você deve confirmar que o código do país é <code>1</code>. Retorne <code>true</code> se a string é um número válido nos EUA; caso contrário retorne <code>false</code>.",
"Lembre-se de usar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Ler-Procurar-Perguntar</a> se você ficar preso. Tente programar em par. Escreva seu próprio código."
]
}
}
},
{
"id": "a3f503de51cf954ede28891d",
"title": "Symmetric Difference",
"description": [
"Create a function that takes two or more arrays and returns an array of the <dfn>symmetric difference</dfn> (<code>&xutri;</code> or <code>&oplus;</code>) of the provided arrays.",
"Given two sets (for example set <code>A = {1, 2, 3}</code> and set <code>B = {2, 3, 4}</code>), the mathematical term \"symmetric difference\" of two sets is the set of elements which are in either of the two sets, but not in both (<code>A &xutri; B = C = {1, 4}</code>). For every additional symmetric difference you take (say on a set <code>D = {2, 3}</code>), you should get the set with elements which are in either of the two the sets but not both (<code>C &xutri; D = {1, 4} &xutri; {2, 3} = {1, 2, 3, 4}</code>). The resulting array must contain only unique values (<em>no duplicates</em>).",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
],
"challengeSeed": [
"function sym(args) {",
" return args;",
"}",
"",
"sym([1, 2, 3], [5, 2, 1, 4]);"
],
"solutions": [
"function sym() {\n var arrays = [].slice.call(arguments);\n return arrays.reduce(function (symDiff, arr) {\n return symDiff.concat(arr).filter(function (val, idx, theArr) {\n return theArr.indexOf(val) === idx \n && (symDiff.indexOf(val) === -1 || arr.indexOf(val) === -1);\n });\n });\n}\nsym([1, 2, 3], [5, 2, 1, 4]);\n"
],
"tests": [
"assert.sameMembers(sym([1, 2, 3], [5, 2, 1, 4]), [3, 4, 5], 'message: <code>sym([1, 2, 3], [5, 2, 1, 4])</code> should return <code>[3, 4, 5]</code>.');",
"assert.equal(sym([1, 2, 3], [5, 2, 1, 4]).length, 3, 'message: <code>sym([1, 2, 3], [5, 2, 1, 4])</code> should contain only three elements.');",
"assert.sameMembers(sym([1, 2, 3, 3], [5, 2, 1, 4]), [3, 4, 5], 'message: <code>sym([1, 2, 3, 3], [5, 2, 1, 4])</code> should return <code>[3, 4, 5]</code>.');",
"assert.equal(sym([1, 2, 3, 3], [5, 2, 1, 4]).length, 3, 'message: <code>sym([1, 2, 3, 3], [5, 2, 1, 4])</code> should contain only three elements.');",
"assert.sameMembers(sym([1, 2, 3], [5, 2, 1, 4, 5]), [3, 4, 5], 'message: <code>sym([1, 2, 3], [5, 2, 1, 4, 5])</code> should return <code>[3, 4, 5]</code>.');",
"assert.equal(sym([1, 2, 3], [5, 2, 1, 4, 5]).length, 3, 'message: <code>sym([1, 2, 3], [5, 2, 1, 4, 5])</code> should contain only three elements.');",
"assert.sameMembers(sym([1, 2, 5], [2, 3, 5], [3, 4, 5]), [1, 4, 5], 'message: <code>sym([1, 2, 5], [2, 3, 5], [3, 4, 5])</code> should return <code>[1, 4, 5]</code>');",
"assert.equal(sym([1, 2, 5], [2, 3, 5], [3, 4, 5]).length, 3, 'message: <code>sym([1, 2, 5], [2, 3, 5], [3, 4, 5])</code> should contain only three elements.');",
"assert.sameMembers(sym([1, 1, 2, 5], [2, 2, 3, 5], [3, 4, 5, 5]), [1, 4, 5], 'message: <code>sym([1, 1, 2, 5], [2, 2, 3, 5], [3, 4, 5, 5])</code> should return <code>[1, 4, 5]</code>.');",
"assert.equal(sym([1, 1, 2, 5], [2, 2, 3, 5], [3, 4, 5, 5]).length, 3, 'message: <code>sym([1, 1, 2, 5], [2, 2, 3, 5], [3, 4, 5, 5])</code> should contain only three elements.');",
"assert.sameMembers(sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3]), [2, 3, 4, 6, 7], 'message: <code>sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3])</code> should return <code>[2, 3, 4, 6, 7]</code>.');",
"assert.equal(sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3]).length, 5, 'message: <code>sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3])</code> should contain only five elements.');",
"assert.sameMembers(sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3], [5, 3, 9, 8], [1]), [1, 2, 4, 5, 6, 7, 8, 9], 'message: <code>sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3], [5, 3, 9, 8], [1])</code> should return <code>[1, 2, 4, 5, 6, 7, 8, 9]</code>.');",
"assert.equal(sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3], [5, 3, 9, 8], [1]).length, 8, 'message: <code>sym([3, 3, 3, 2, 5], [2, 1, 5, 7], [3, 4, 6, 6], [1, 2, 3], [5, 3, 9, 8], [1])</code> should contain only eight elements.');"
],
"type": "bonfire",
"MDNlinks": [
"Array.prototype.reduce()",
"Symmetric Difference"
],
"challengeType": 5,
"translations": {
"es": {
"title": "Diferencia Simétrica",
"description": [
"Crea una función que acepte dos o más arreglos y que devuelva un arreglo conteniendo la diferenia simétrica entre ambos",
"En Matemáticas, el término 'diferencia simétrica' se refiere a los elementos en dos conjuntos que están en el primer conjunto o en el segundo, pero no en ambos.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado. Intenta programar en pareja. Escribe tu propio código."
]
},
"it": {
"title": "Differenza Simmetrica",
"description": [
"Crea una funzione che accetti due o più array e che ritorni un array contenente la <dfn>differenza simmetrica</dfn> (<code>&xutri;</code> o <code>&oplus;</code>) degli stessi.",
"Dati due insiemi (per esempio l'insieme <code>A = {1, 2, 3}<code> e l'insieme <code>B = {2, 3, 4}</code>, il termine matematico \"differenza simmetrica\" di due insiemi è l'insieme degli elementi che sono in almeno uno dei due insiemi, ma non in entrambi (<code>A &xutri; B = C = {1, 4}</code>). Per ogni differenza simmetrica aggiuntiva che fai (per esempio su un insieme <code>D = {2, 3}</code>), devi prendere l'insieme degli elementi che sono in almeno uno dei due insiemi ma non in entrambi (<code>C &xutri; D = {1, 4} &xutri; {2, 3} = {1, 2, 3, 4}</code>).",
"Ricorda di usare <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leggi-Cerca-Chiedi</a> se rimani bloccato. Prova a programmare in coppia. Scrivi il codice da te."
]
},
"pt-br": {
"title": "Diferença Simétrica",
"description": [
"Crie uma função que recebe duas ou mais matrizes e retorna a matriz <dfn>diferença simétrica</dfn> (<code>&xutri;</code> ou <code>&oplus;</code>) das matrizes fornecidas.",
"Dado dois conjuntos (por exemplo conjunto <code>A = {1, 2, 3}</code> e conjunto <code>B = {2, 3, 4}</code>), o termo matemático \"diferença simétrica\" dos dois cojuntos é o conjunto dos elementos que estão em um dos conjuntos, mas não nos dois (<code>A &xutri; B = C = {1, 4}</code>). Para cada diferença simétrica adicional que você faz (digamos em um terceiro conjunto <code>D = {2, 3}</code>), voce deve retornar o conjunto no qual os elementos estão em um dos conjuntos mas não nos dois (<code>C &xutri; D = {1, 4} &xutri; {2, 3} = {1, 2, 3, 4}</code>). O conjunto final deve ter somentes valores únicos (<em>sem números repetidos</em>).",
"Lembre-se de usar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Ler-Procurar-Perguntar</a> se você ficar preso. Tente programar em par. Escreva seu próprio código."
]
}
}
},
{
"id": "aa2e6f85cab2ab736c9a9b24",
"title": "Exact Change",
"description": [
"Design a cash register drawer function <code>checkCashRegister()</code> that accepts purchase price as the first argument (<code>price</code>), payment as the second argument (<code>cash</code>), and cash-in-drawer (<code>cid</code>) as the third argument.",
"<code>cid</code> is a 2D array listing available currency.",
"Return the string <code>\"Insufficient Funds\"</code> if cash-in-drawer is less than the change due or if you cannot return the exact change. Return the string <code>\"Closed\"</code> if cash-in-drawer is equal to the change due.",
"Otherwise, return change in coin and bills, sorted in highest to lowest order.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code.",
"<table class='table table-striped'><tr><th>Currency Unit</th><th>Amount</th></tr><tr><td>Penny</td><td>$0.01 (PENNY)</td></tr><tr><td>Nickel</td><td>$0.05 (NICKEL)</td></tr><tr><td>Dime</td><td>$0.1 (DIME)</td></tr><tr><td>Quarter</td><td>$0.25 (QUARTER)</td></tr><tr><td>Dollar</td><td>$1 (DOLLAR)</td></tr><tr><td>Five Dollars</td><td>$5 (FIVE)</td></tr><tr><td>Ten Dollars</td><td>$10 (TEN)</td></tr><tr><td>Twenty Dollars</td><td>$20 (TWENTY)</td></tr><tr><td>One-hundred Dollars</td><td>$100 (ONE HUNDRED)</td></tr></table>"
],
"challengeSeed": [
"function checkCashRegister(price, cash, cid) {",
" var change;",
" // Here is your change, ma'am.",
" return change;",
"}",
"",
"// Example cash-in-drawer array:",
"// [[\"PENNY\", 1.01],",
"// [\"NICKEL\", 2.05],",
"// [\"DIME\", 3.1],",
"// [\"QUARTER\", 4.25],",
"// [\"ONE\", 90],",
"// [\"FIVE\", 55],",
"// [\"TEN\", 20],",
"// [\"TWENTY\", 60],",
"// [\"ONE HUNDRED\", 100]]",
"",
"checkCashRegister(19.5, 20, [[\"PENNY\", 1.01], [\"NICKEL\", 2.05], [\"DIME\", 3.1], [\"QUARTER\", 4.25], [\"ONE\", 90], [\"FIVE\", 55], [\"TEN\", 20], [\"TWENTY\", 60], [\"ONE HUNDRED\", 100]]);"
],
"solutions": [
"var denom = [\n\t{ name: 'ONE HUNDRED', val: 100},\n\t{ name: 'TWENTY', val: 20},\n\t{ name: 'TEN', val: 10},\n\t{ name: 'FIVE', val: 5},\n\t{ name: 'ONE', val: 1},\n\t{ name: 'QUARTER', val: 0.25},\n\t{ name: 'DIME', val: 0.1},\n\t{ name: 'NICKEL', val: 0.05},\n\t{ name: 'PENNY', val: 0.01}\n];\n\nfunction checkCashRegister(price, cash, cid) {\n var change = cash - price;\n var register = cid.reduce(function(acc, curr) {\n acc.total += curr[1];\n acc[curr[0]] = curr[1];\n return acc;\n }, {total: 0});\n if(register.total === change) {\n return 'Closed';\n }\n if(register.total < change) {\n return 'Insufficient Funds';\n }\n var change_arr = denom.reduce(function(acc, curr) {\n var value = 0;\n while(register[curr.name] > 0 && change >= curr.val) {\n change -= curr.val;\n register[curr.name] -= curr.val;\n value += curr.val;\n change = Math.round(change * 100) / 100;\n }\n if(value > 0) {\n acc.push([ curr.name, value ]);\n }\n return acc;\n }, []);\n if(change_arr.length < 1 || change > 0) {\n return \"Insufficient Funds\";\n }\n return change_arr;\n}"
],
"tests": [
"assert.isArray(checkCashRegister(19.5, 20, [[\"PENNY\", 1.01], [\"NICKEL\", 2.05], [\"DIME\", 3.1], [\"QUARTER\", 4.25], [\"ONE\", 90], [\"FIVE\", 55], [\"TEN\", 20], [\"TWENTY\", 60], [\"ONE HUNDRED\", 100]]), 'message: <code>checkCashRegister(19.5, 20, [[\"PENNY\", 1.01], [\"NICKEL\", 2.05], [\"DIME\", 3.1], [\"QUARTER\", 4.25], [\"ONE\", 90], [\"FIVE\", 55], [\"TEN\", 20], [\"TWENTY\", 60], [\"ONE HUNDRED\", 100]])</code> should return an array.');",
"assert.isString(checkCashRegister(19.5, 20, [[\"PENNY\", 0.01], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]]), 'message: <code>checkCashRegister(19.5, 20, [[\"PENNY\", 0.01], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]])</code> should return a string.');",
"assert.isString(checkCashRegister(19.5, 20, [[\"PENNY\", 0.5], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]]), 'message: <code>checkCashRegister(19.5, 20, [[\"PENNY\", 0.5], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]])</code> should return a string.');",
"assert.deepEqual(checkCashRegister(19.5, 20, [[\"PENNY\", 1.01], [\"NICKEL\", 2.05], [\"DIME\", 3.1], [\"QUARTER\", 4.25], [\"ONE\", 90], [\"FIVE\", 55], [\"TEN\", 20], [\"TWENTY\", 60], [\"ONE HUNDRED\", 100]]), [[\"QUARTER\", 0.5]], 'message: <code>checkCashRegister(19.5, 20, [[\"PENNY\", 1.01], [\"NICKEL\", 2.05], [\"DIME\", 3.1], [\"QUARTER\", 4.25], [\"ONE\", 90], [\"FIVE\", 55], [\"TEN\", 20], [\"TWENTY\", 60], [\"ONE HUNDRED\", 100]])</code> should return <code>[[\"QUARTER\", 0.5]]</code>.');",
"assert.deepEqual(checkCashRegister(3.26, 100, [[\"PENNY\", 1.01], [\"NICKEL\", 2.05], [\"DIME\", 3.1], [\"QUARTER\", 4.25], [\"ONE\", 90], [\"FIVE\", 55], [\"TEN\", 20], [\"TWENTY\", 60], [\"ONE HUNDRED\", 100]]), [[\"TWENTY\", 60], [\"TEN\", 20], [\"FIVE\", 15], [\"ONE\", 1], [\"QUARTER\", 0.5], [\"DIME\", 0.2], [\"PENNY\", 0.04]], 'message: <code>checkCashRegister(3.26, 100, [[\"PENNY\", 1.01], [\"NICKEL\", 2.05], [\"DIME\", 3.1], [\"QUARTER\", 4.25], [\"ONE\", 90], [\"FIVE\", 55], [\"TEN\", 20], [\"TWENTY\", 60], [\"ONE HUNDRED\", 100]])</code> should return <code>[[\"TWENTY\", 60], [\"TEN\", 20], [\"FIVE\", 15], [\"ONE\", 1], [\"QUARTER\", 0.5], [\"DIME\", 0.2], [\"PENNY\", 0.04]]</code>.');",
"assert.deepEqual(checkCashRegister(19.5, 20, [[\"PENNY\", 0.01], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]]), \"Insufficient Funds\", 'message: <code>checkCashRegister(19.5, 20, [[\"PENNY\", 0.01], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]])</code> should return \"Insufficient Funds\".');",
"assert.deepEqual(checkCashRegister(19.5, 20, [[\"PENNY\", 0.01], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 1], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]]), \"Insufficient Funds\", 'message: <code>checkCashRegister(19.5, 20, [[\"PENNY\", 0.01], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 1], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]])</code> should return \"Insufficient Funds\".');",
"assert.deepEqual(checkCashRegister(19.5, 20, [[\"PENNY\", 0.5], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]]), \"Closed\", 'message: <code>checkCashRegister(19.5, 20, [[\"PENNY\", 0.5], [\"NICKEL\", 0], [\"DIME\", 0], [\"QUARTER\", 0], [\"ONE\", 0], [\"FIVE\", 0], [\"TEN\", 0], [\"TWENTY\", 0], [\"ONE HUNDRED\", 0]])</code> should return \"Closed\".');"
],
"type": "bonfire",
"MDNlinks": [
"Global Object",
"Floating Point Guide"
],
"challengeType": 5,
"translations": {
"es": {
"title": "Cambio Exacto",
"description": [
"Crea una función que simule una caja registradora que acepte el precio de compra como el primer argumento, la cantidad recibida como el segundo argumento, y la cantidad de dinero disponible en la registradora (cid) como tercer argumento",
"cid es un arreglo bidimensional que lista la cantidad de dinero disponible",
"La función debe devolver la cadena de texto \"Insufficient Funds\" si el cid es menor al cambio requerido. También debe devolver \"Closed\" si el cid es igual al cambio",
"De no ser el caso, devuelve el cambio en monedas y billetes, ordenados de mayor a menor denominación.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado. Intenta programar en pareja. Escribe tu propio código."
]
},
"it": {
"title": "Cambio Esatto",
"description": [
"Scrivi una funzione che simuli un registro di cassa chiamata <code>checkCashRegister()</code> che accetti il prezzo degli articoli come primo argomento (<code>price</code>), la somma pagata (<code>cash</code>), e la somma disponibile nel registratore di cassa (<code>cid</code>) come terzo argomento.",
"<code>cid</code> è un array a due dimensioni che contiene la quantità di monete e banconote disponibili.",
"Ritorna la stringa <code>\"Insufficient Funds\"</code> se la quantità di denaro disponibile nel registratore di cassa non è abbastanza per restituire il resto. Ritorna la stringa <code>\"Closed\"</code> se il denaro disponibile è esattamente uguale al resto.",
"Altrimenti, ritorna il resto in monete e banconote, ordinate da quelle con valore maggiore a quelle con valore minore.",
"Ricorda di usare <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leggi-Cerca-Chiedi</a> se rimani bloccato. Prova a programmare in coppia. Scrivi il codice da te."
]
},
"pt-br": {
"title": "Troco Exato",
"description": [
"Crie uma função que simula uma caixa registradora chamada <code>checkCashRegister()</code> e aceita o valor da compra como primeiro argumento (<code>price</code>), pagamento como segundo argumento (<code>cash</code>), e o dinheiro na caixa registradora (<code>cid</code>) como terceiro argumento.",
"<code>cid</code> é uma matriz bidimensional que lista o dinheiro disponível.",
"Retorne a string <code>\"Insufficient Funds\"</code> se o dinheiro na caixa registradora é menor do que o troco ou se não é possível retornar o troco exato. Retorne a string <code>\"Closed\"</code> se o dinheiro na caixa é igual ao troco.",
"Case cotrário, retorne o troco em moedas e notas, ordenado do maior para menor.",
"Lembre-se de usar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Ler-Procurar-Perguntar</a> se você ficar preso. Tente programar em par. Escreva seu próprio código.",
"<table class='table table-striped'><tr><th>Currency Unit</th><th>Amount</th></tr><tr><td>Penny</td><td>$0.01 (PENNY)</td></tr><tr><td>Nickel</td><td>$0.05 (NICKEL)</td></tr><tr><td>Dime</td><td>$0.1 (DIME)</td></tr><tr><td>Quarter</td><td>$0.25 (QUARTER)</td></tr><tr><td>Dollar</td><td>$1 (DOLLAR)</td></tr><tr><td>Five Dollars</td><td>$5 (FIVE)</td></tr><tr><td>Ten Dollars</td><td>$10 (TEN)</td></tr><tr><td>Twenty Dollars</td><td>$20 (TWENTY)</td></tr><tr><td>One-hundred Dollars</td><td>$100 (ONE HUNDRED)</td></tr></table>"
]
}
}
},
{
"id": "a56138aff60341a09ed6c480",
"title": "Inventory Update",
"description": [
"Compare and update the inventory stored in a 2D array against a second 2D array of a fresh delivery. Update the current existing inventory item quantities (in <code>arr1</code>). If an item cannot be found, add the new item and quantity into the inventory array. The returned inventory array should be in alphabetical order by item.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
],
"challengeSeed": [
"function updateInventory(arr1, arr2) {",
" // All inventory must be accounted for or you're fired!",
" return arr1;",
"}",
"",
"// Example inventory lists",
"var curInv = [",
" [21, \"Bowling Ball\"],",
" [2, \"Dirty Sock\"],",
" [1, \"Hair Pin\"],",
" [5, \"Microphone\"]",
"];",
"",
"var newInv = [",
" [2, \"Hair Pin\"],",
" [3, \"Half-Eaten Apple\"],",
" [67, \"Bowling Ball\"],",
" [7, \"Toothpaste\"]",
"];",
"",
"updateInventory(curInv, newInv);"
],
"solutions": [
"function updateInventory(arr1, arr2) {\n arr2.forEach(function(item) {\n createOrUpdate(arr1, item);\n });\n // All inventory must be accounted for or you're fired!\n return arr1;\n}\n\nfunction createOrUpdate(arr1, item) {\n var index = -1;\n while (++index < arr1.length) {\n if (arr1[index][1] === item[1]) {\n arr1[index][0] += item[0];\n return;\n }\n if (arr1[index][1] > item[1]) {\n break;\n }\n }\n arr1.splice(index, 0, item);\n}\n\n// Example inventory lists\nvar curInv = [\n [21, 'Bowling Ball'],\n [2, 'Dirty Sock'],\n [1, 'Hair Pin'],\n [5, 'Microphone']\n];\n\nvar newInv = [\n [2, 'Hair Pin'],\n [3, 'Half-Eaten Apple'],\n [67, 'Bowling Ball'],\n [7, 'Toothpaste']\n];\n\nupdateInventory(curInv, newInv);\n"
],
"tests": [
"assert.isArray(updateInventory([[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], [[2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [67, \"Bowling Ball\"], [7, \"Toothpaste\"]]), 'message: The function <code>updateInventory</code> should return an array.');",
"assert.equal(updateInventory([[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], [[2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [67, \"Bowling Ball\"], [7, \"Toothpaste\"]]).length, 6, 'message: <code>updateInventory([[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], [[2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [67, \"Bowling Ball\"], [7, \"Toothpaste\"]]).length</code> should return an array with a length of 6.');",
"assert.deepEqual(updateInventory([[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], [[2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [67, \"Bowling Ball\"], [7, \"Toothpaste\"]]), [[88, \"Bowling Ball\"], [2, \"Dirty Sock\"], [3, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [5, \"Microphone\"], [7, \"Toothpaste\"]], 'message: <code>updateInventory([[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], [[2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [67, \"Bowling Ball\"], [7, \"Toothpaste\"]])</code> should return <code>[[88, \"Bowling Ball\"], [2, \"Dirty Sock\"], [3, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [5, \"Microphone\"], [7, \"Toothpaste\"]]</code>.');",
"assert.deepEqual(updateInventory([[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], []), [[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], 'message: <code>updateInventory([[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]], [])</code> should return <code>[[21, \"Bowling Ball\"], [2, \"Dirty Sock\"], [1, \"Hair Pin\"], [5, \"Microphone\"]]</code>.');",
"assert.deepEqual(updateInventory([], [[2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [67, \"Bowling Ball\"], [7, \"Toothpaste\"]]), [[67, \"Bowling Ball\"], [2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [7, \"Toothpaste\"]], 'message: <code>updateInventory([], [[2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [67, \"Bowling Ball\"], [7, \"Toothpaste\"]])</code> should return <code>[[67, \"Bowling Ball\"], [2, \"Hair Pin\"], [3, \"Half-Eaten Apple\"], [7, \"Toothpaste\"]]</code>.');",
"assert.deepEqual(updateInventory([[0, \"Bowling Ball\"], [0, \"Dirty Sock\"], [0, \"Hair Pin\"], [0, \"Microphone\"]], [[1, \"Hair Pin\"], [1, \"Half-Eaten Apple\"], [1, \"Bowling Ball\"], [1, \"Toothpaste\"]]), [[1, \"Bowling Ball\"], [0, \"Dirty Sock\"], [1, \"Hair Pin\"], [1, \"Half-Eaten Apple\"], [0, \"Microphone\"], [1, \"Toothpaste\"]], 'message: <code>updateInventory([[0, \"Bowling Ball\"], [0, \"Dirty Sock\"], [0, \"Hair Pin\"], [0, \"Microphone\"]], [[1, \"Hair Pin\"], [1, \"Half-Eaten Apple\"], [1, \"Bowling Ball\"], [1, \"Toothpaste\"]])</code> should return <code>[[1, \"Bowling Ball\"], [0, \"Dirty Sock\"], [1, \"Hair Pin\"], [1, \"Half-Eaten Apple\"], [0, \"Microphone\"], [1, \"Toothpaste\"]]</code>.');"
],
"type": "bonfire",
"MDNlinks": [
"Global Array Object"
],
"challengeType": 5,
"translations": {
"es": {
"title": "Actualizando el Inventario",
"description": [
"Compara y actualiza el inventario actual, almacenado en un arreglo bidimensional, contra otro arreglo bidimensional de inventario nuevo. Actualiza las cantidades en el inventario actual y, en caso de recibir una nueva mercancía, añade su nombre y la cantidad recibida al arreglo del inventario en orden alfabético.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado. Intenta programar en pareja. Escribe tu propio código."
]
},
"it": {
"title": "Aggiornamento dell'Inventario",
"description": [
"Confronta e aggiorna l'inventario, contenuto in un array bidimensionale, con un secondo array bidimensionale relativo ad una nuova consegna. Aggiorna le quantità disponibili in inventario (dentro <code>arr1</code>). Se uno degli articoli non è presente nell'inventario, aggiungi allo stesso il nuovo articolo e la sua quantità. Ritorna un array con l'inventario aggiornato, che deve essere ordinato alfabeticamente per articolo.",
"Ricorda di usare <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leggi-Cerca-Chiedi</a> se rimani bloccato. Prova a programmare in coppia. Scrivi il codice da te."
]
},
"pt-br": {
"title": "Atualizando Inventário",
"description": [
"Compare e atualize o inventário armazenado em um matriz 2D contra uma segunda matriz 2D de uma entrega recente. Atualize a quantidade de itens no inventário atual (em <code>arr1</code>). Se um item não pode ser encontrado, adicione um novo item e a sua quantidade na matriz do inventário. O inventário retornado deve estar em ordem alfabética por item.",
"Lembre-se de usar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Ler-Procurar-Perguntar</a> se você ficar preso. Tente programar em par. Escreva seu próprio código."
]
}
}
},
{
"id": "a7bf700cd123b9a54eef01d5",
"title": "No Repeats Please",
"description": [
"Return the number of total permutations of the provided string that don't have repeated consecutive letters. Assume that all characters in the provided string are each unique.",
"For example, <code>aab</code> should return 2 because it has 6 total permutations (<code>aab</code>, <code>aab</code>, <code>aba</code>, <code>aba</code>, <code>baa</code>, <code>baa</code>), but only 2 of them (<code>aba</code> and <code>aba</code>) don't have the same letter (in this case <code>a</code>) repeating.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
],
"challengeSeed": [
"function permAlone(str) {",
" return str;",
"}",
"",
"permAlone('aab');"
],
"solutions": [
"function permAlone(str) {\n return permutor(str).filter(function(perm) {\n return !perm.match(/(.)\\1/g);\n }).length;\n}\n\nfunction permutor(str) {\n // http://staff.roguecc.edu/JMiller/JavaScript/permute.html\n //permArr: Global array which holds the list of permutations\n //usedChars: Global utility array which holds a list of \"currently-in-use\" characters\n var permArr = [], usedChars = [];\n function permute(input) {\n //convert input into a char array (one element for each character)\n var i, ch, chars = input.split(\"\");\n for (i = 0; i < chars.length; i++) {\n //get and remove character at index \"i\" from char array\n ch = chars.splice(i, 1);\n //add removed character to the end of used characters\n usedChars.push(ch);\n //when there are no more characters left in char array to add, add used chars to list of permutations\n if (chars.length === 0) permArr[permArr.length] = usedChars.join(\"\");\n //send characters (minus the removed one from above) from char array to be permuted\n permute(chars.join(\"\"));\n //add removed character back into char array in original position\n chars.splice(i, 0, ch);\n //remove the last character used off the end of used characters array\n usedChars.pop();\n }\n }\n permute(str);\n return permArr;\n}\n\npermAlone('aab');\n"
],
"tests": [
"assert.isNumber(permAlone('aab'), 'message: <code>permAlone(\"aab\")</code> should return a number.');",
"assert.strictEqual(permAlone('aab'), 2, 'message: <code>permAlone(\"aab\")</code> should return 2.');",
"assert.strictEqual(permAlone('aaa'), 0, 'message: <code>permAlone(\"aaa\")</code> should return 0.');",
"assert.strictEqual(permAlone('aabb'), 8, 'message: <code>permAlone(\"aabb\")</code> should return 8.');",
"assert.strictEqual(permAlone('abcdefa'), 3600, 'message: <code>permAlone(\"abcdefa\")</code> should return 3600.');",
"assert.strictEqual(permAlone('abfdefa'), 2640, 'message: <code>permAlone(\"abfdefa\")</code> should return 2640.');",
"assert.strictEqual(permAlone('zzzzzzzz'), 0, 'message: <code>permAlone(\"zzzzzzzz\")</code> should return 0.');",
"assert.strictEqual(permAlone('a'), 1, 'message: <code>permAlone(\"a\")</code> should return 1.');",
"assert.strictEqual(permAlone('aaab'), 0, 'message: <code>permAlone(\"aaab\")</code> should return 0.');",
"assert.strictEqual(permAlone('aaabb'), 12, 'message: <code>permAlone(\"aaabb\")</code> should return 12.');"
],
"type": "bonfire",
"MDNlinks": [
"Permutations",
"RegExp"
],
"challengeType": 5,
"translations": {
"es": {
"title": "Sin Repeticiones, por Favor",
"description": [
"Crea una función que devuelva el número total de permutaciones de las letras en la cadena de texto provista, en las cuales no haya letras consecutivas repetidas",
"Por ejemplo, 'aab' debe retornar 2 porque, del total de 6 permutaciones posibles, solo 2 de ellas no tienen repetida la misma letra (en este caso 'a').",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado. Intenta programar en pareja. Escribe tu propio código."
]
},
"it": {
"title": "Niente Ripetizioni, per Favore",
"description": [
"Ritorna il numero totale di permutazioni della stringa passata che non hanno lettere consecutive riptetute. Assumi che tutti i caratteri nella stringa passata siano unici.",
"Per esempio, <code>aab</code> deve ritornare 2, perchè la stringa ha 6 permutazioni possibili in totale (<code>aab</code>, <code>aab</code>, <code>aba</code>, <code>aba</code>, <code>baa</code>, <code>baa</code>), ma solo 2 di loro (<code>aba</code> e <code>aba</code>) non contengono la stessa lettera (in questo caso <code>a</code> ripetuta).",
"Ricorda di usare <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leggi-Cerca-Chiedi</a> se rimani bloccato. Prova a programmare in coppia. Scrivi il codice da te."
]
},
"pt-br": {
"title": "Sem repetição, por favor",
"description": [
"Retorne o número total de permutações da string fornecida que não tem letras consecutivas repetidas. Assuma que todos os caracteres na string fornecida são únicos.",
"Por exemplo, <code>aab</code> deve retornar 2 porque tem um total de 6 permutações (<code>aab</code>, <code>aab</code>, <code>aba</code>, <code>aba</code>, <code>baa</code>, <code>baa</code>), mas somente duas delas (<code>aba</code> and <code>aba</code>) não tem a mesma letra (nesse caso <code>a</code>) se repetindo.",
"Lembre-se de usar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Ler-Procurar-Perguntar</a> se você ficar preso. Tente programar em par. Escreva seu próprio código."
]
}
}
},
{
"id": "a3f503de51cfab748ff001aa",
"title": "Pairwise",
"description": [
"Given an array <code>arr</code>, find element pairs whose sum equal the second argument <code>arg</code> and return the sum of their indices.",
"You may use multiple pairs that have the same numeric elements but different indices. Each pair should use the lowest possible available indices. Once an element has been used it cannot be reused to pair with another element.",
"For example <code>pairwise([7, 9, 11, 13, 15], 20)</code> returns <code>6</code>. The pairs that sum to 20 are <code>[7, 13]</code> and <code>[9, 11]</code>. We can then write out the array with their indices and values.",
"<table class=\"table\"><tr><th><b>Index</b></th><th>0</th><th>1</th><th>2</th><th>3</th><th>4</th></tr><tr><td>Value</td><td>7</td><td>9</td><td>11</td><td>13</td><td>15</td></tr></table>",
"Below we'll take their corresponding indices and add them.",
"7 + 13 = 20 &#8594; Indices 0 + 3 = 3<br>9 + 11 = 20 &#8594; Indices 1 + 2 = 3<br>3 + 3 = 6 &#8594 Return <code>6</code>",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
],
"challengeSeed": [
"function pairwise(arr, arg) {",
" return arg;",
"}",
"",
"pairwise([1,4,2,3,0,5], 7);"
],
"solutions": [
"function pairwise(arr, arg) {\n var sum = 0;\n arr.forEach(function(e, i, a) {\n if (e != null) { \n var diff = arg-e;\n a[i] = null;\n var dix = a.indexOf(diff);\n if (dix !== -1) {\n sum += dix;\n sum += i;\n a[dix] = null;\n } \n }\n });\n return sum;\n}\n\npairwise([1,4,2,3,0,5], 7);\n"
],
"tests": [
"assert.deepEqual(pairwise([1, 4, 2, 3, 0, 5], 7), 11, 'message: <code>pairwise([1, 4, 2, 3, 0, 5], 7)</code> should return 11.');",
"assert.deepEqual(pairwise([1, 3, 2, 4], 4), 1, 'message: <code>pairwise([1, 3, 2, 4], 4)</code> should return 1.');",
"assert.deepEqual(pairwise([1, 1, 1], 2), 1, 'message: <code>pairwise([1, 1, 1], 2)</code> should return 1.');",
"assert.deepEqual(pairwise([0, 0, 0, 0, 1, 1], 1), 10, 'message: <code>pairwise([0, 0, 0, 0, 1, 1], 1)</code> should return 10.');",
"assert.deepEqual(pairwise([], 100), 0, 'message: <code>pairwise([], 100)</code> should return 0.');"
],
"type": "bonfire",
"MDNlinks": [
"Array.prototype.reduce()"
],
"challengeType": 5,
"translations": {
"es": {
"title": "En Parejas",
"description": [
"Crea una función que devuelva la suma de todos los índices de los elementos de 'arr' que pueden ser emparejados con otro elemento de tal forma que la suma de ambos equivalga al valor del segundo argumento, 'arg'. Si varias combinaciones son posibles, devuelve la menor suma de índices. Una vez un elemento ha sido usado, no puede ser usado de nuevo para emparejarlo con otro elemento.",
"Por ejemplo, pairwise([1, 4, 2, 3, 0, 5], 7) debe devolver 11 porque 4, 2, 3 y 5 pueden ser emparejados para obtener una suma de 7",
"pairwise([1, 3, 2, 4], 4) devolvería el valor de 1, porque solo los primeros dos elementos pueden ser emparejados para sumar 4. ¡Recuerda que el primer elemento tiene un índice de 0!",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado. Intenta programar en pareja. Escribe tu propio código."
]
},
"it": {
"title": "A Coppie",
"description": [
"Dato un array <code>arr</code>, trova le coppie di elementi la cui somma è uguale al secondo argomento passato <code>arg</code>. Ritorna quindi la somma dei loro indici.",
"Se ci sono più coppie possibili che hanno lo stesso valore numerico ma indici differenti, ritorna la somma degli indici minore. Una volta usato un elemento, lo stesso non può essere riutilizzato per essere accoppiato con un altro.",
"Per esempio <code>pairwise([7, 9, 11, 13, 15], 20)</code> ritorna <code>6</code>. Le coppia la cui somma è 20 sono <code>[7, 13]</code> e <code>[9, 11]</code>. Possiamo quindi osservare l'array con i loro indici e valori.",
"<table class=\"table\"><tr><th><b>Indice</b></th><th>0</th><th>1</th><th>2</th><th>3</th><th>4</th></tr><tr><td>Valore</td><td>7</td><td>9</td><td>11</td><td>13</td><td>15</td></tr></table>",
"Qui sotto prendiamo gli indici corrispondenti e li sommiamo.",
"7 + 13 = 20 &#8594; Indici 0 + 3 = 3<br>9 + 11 = 20 &#8594; Indici 1 + 2 = 3<br>3 + 3 = 6 &#8594 Ritorna <code>6</code>",
"Ricorda di usare <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leggi-Cerca-Chiedi</a> se rimani bloccato. Prova a programmare in coppia. Scrivi il codice da te."
]
},
"pt-br": {
"title": "Emparelhados",
"description": [
"Dado uma matriz <code>arr</code>, encontre pares de elementos no qual a soma é igual ao segundo argumento <code>arg</code> e retorne a soma dos seus indices.",
"Se multiplos pares tem o mesmo elemento numérico mas indices diferentes, retorne a soma dos menores indices. Uma vez que um elemento é usado, este não pode ser emparelhado novamente com outro elemento.",
"Por exemplo <code>pairwise([7, 9, 11, 13, 15], 20)</code> retorna <code>6</code>. Os pares que somam 20 são <code>[7, 13]</code> e <code>[9, 11]</code>. Nós podemos então criar a matriz com seus indices e valores.",
"<table class=\"table\"><tr><th><b>Index</b></th><th>0</th><th>1</th><th>2</th><th>3</th><th>4</th></tr><tr><td>Value</td><td>7</td><td>9</td><td>11</td><td>13</td><td>15</td></tr></table>",
"Abaixo nós pegamos os índices correspondentes e somá-los.",
"7 + 13 = 20 &#8594; Indices 0 + 3 = 3<br>9 + 11 = 20 &#8594; Indices 1 + 2 = 3<br>3 + 3 = 6 &#8594 Retorna <code>6</code>",
"Lembre-se de usar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Ler-Procurar-Perguntar</a> se você ficar preso. Tente programar em par. Escreva seu próprio código."
]
}
}
}
]
}

4198
challenges/08-coding-interview-questions-and-take-home-assignments/coding-interview-data-structure-questions.json Normal file
View File

File diff suppressed because it is too large Load Diff

488
challenges/08-coding-interview-questions-and-take-home-assignments/take-home-interview-projects.json Normal file
View File

@ -0,0 +1,488 @@
{
"name": "Coding Interview Take-home Projects",
"order": 1,
"time": "500 hours",
"helpRoom": "HelpFrontEnd",
"challenges": [
{
"id": "bd7158d8c442eddfaeb5bd10",
"title": "Show the Local Weather",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='http://codepen.io/FreeCodeCamp/full/bELRjV' target='_blank'>http://codepen.io/FreeCodeCamp/full/bELRjV</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I can see the weather in my current location.",
"<strong>User Story:</strong> I can see a different icon or background image (e.g. snowy mountain, hot desert) depending on the weather.",
"<strong>User Story:</strong> I can push a button to toggle between Fahrenheit and Celsius.",
"We recommend using the <a href='https://openweathermap.org/current#geo' target='_blank'>Open Weather API</a>. This will require creating a free API key. Normally you want to avoid exposing API keys on CodePen, but we haven't been able to find a keyless API for weather.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen.",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [
"GCLiJU-vvVc"
],
"tests": [],
"type": "zipline",
"challengeType": 3,
"isRequired": false,
"translations": {
"es": {
"title": "Muestra el clima local",
"description": [
"<span class='text-info'>Objetivo:</span> Crea una aplicación con <a href='https://codepen.io' target='_blank'>CodePen.io</a> cuya funcionalidad sea similar a la de esta: <a href='http://codepen.io/FreeCodeCamp/full/bELRjV' target='_blank'>http://codepen.io/FreeCodeCamp/full/bELRjV</a>.",
"Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o APIs que necesites.",
"<span class='text-info'>Historia de usuario:</span> Pedo obtener información acerca del clima en mi localización actual.",
"<span class='text-info'>Historia de usuario:</span> Puedo ver un icono diferente o una imagen de fondo diferente (e.g. montaña con nieve, desierto caliente) dependiendo del clima.",
"<span class='text-info'>Historia de usuario:</span> Puedo pulsar un botón para cambiar la unidad de temperatura de grados Fahrenheit a Celsius y viceversa.",
"Recomendamos utilizar <a href='https://openweathermap.org/current#geo' target='_blank'>Open Weather API</a>. Al utilizarlo tendrás que crear una llave API gratuita. Normalmente debes evitar exponer llaves de API en CodePen, pero por el momento no hemos encontrado un API de clima que no requiera llave.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leer-Buscar-Preguntar</a> si te sientes atascado.",
"Cuando hayas terminado, pulsa el botón de \"I've completed this challenge\" e incluye un enlace a tu CodePen.",
"Puedes obtener retroalimentación sobre tu proyecto por parte de otros campistas, compartiendolo en nuestra <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Sala de chat para revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
},
"ru": {
"title": "Покажите местную погоду",
"description": [
"<span class='text-info'>Задание:</span> Создайте <a href='https://codepen.io' target='_blank'>CodePen.io</a> который успешно копирует вот этот: <a href='http://codepen.io/FreeCodeCamp/full/bELRjV' target='_blank'>http://codepen.io/FreeCodeCamp/full/bELRjV</a>.",
"<span class='text-info'>Правило #1:</span> Не подсматривайте код приведенного на CodePen примера. Напишите его самостоятельно.",
"<span class='text-info'>Правило #2:</span> Можете использовать любые библиотеки или API, которые потребуются.",
"<span class='text-info'>Правило #3:</span> Воссоздайте функционал приведенного примера и не стесняйтесь добавить что-нибудь от себя.",
"Реализуйте следующие <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>пользовательские истории</a>, сделайте также бонусные по желанию:",
"<span class='text-info'>Пользовательская история:</span> В качестве пользователя, я могу узнать погоду с учетом моего текущего местоположения.",
"<span class='text-info'>Бонусная пользовательская история:</span> В качестве пользователя, я могу в зависимости от погоды видеть различные температурные значки.",
"<span class='text-info'>Бонусная пользовательская история:</span> В качестве пользователя, я могу в зависимости от погоды видеть различные фоновые изображения (снежные горы, знойная пустыня).",
"<span class='text-info'>Бонусная пользовательская история:</span> В качестве пользователя, я могу нажать на кнопку чтобы переключится между градусами по Цельсию или по Фаренгейту.",
"Если что-то не получается, воспользуйтесь <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a>.",
"Когда выполните задание кликните кнопку \"I've completed this challenge\" и добавьте ссылку на ваш CodePen. Если вы программировали с кем-то в паре, также добавьте имя вашего напарника.",
"Если вы хотите получить немедленную оценку вашего проекта, нажмите эту кнопку и добавьте ссылку на ваш CodePen. В противном случае мы проверим его перед тем как вы приступите к проектам для некоммерческих организаций.<br><br><a class='btn btn-primary btn-block' href='https://twitter.com/intent/tweet?text=Check%20out%20the%20project%20I%20just%20built%20with%20%40FreeCodeCamp:%20%0A%20%23LearnToCode%20%23JavaScript' target='_blank'>Click here then add your link to your tweet's text</a>"
]
}
}
},
{
"id": "bd7158d8c442eddfaeb5bd19",
"title": "Build a Wikipedia Viewer",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/FreeCodeCamp/full/wGqEga/' target='_blank'>https://codepen.io/FreeCodeCamp/full/wGqEga/</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I can search Wikipedia entries in a search box and see the resulting Wikipedia entries.",
"<strong>User Story:</strong> I can click a button to see a random Wikipedia entry.",
"<span class='text-info'>Hint #1:</span> Here's a URL you can use to get a random Wikipedia article: <code>https://en.wikipedia.org/wiki/Special:Random</code>.",
"<span class='text-info'>Hint #2:</span> Here's an entry on using Wikipedia's API: <code>https://www.mediawiki.org/wiki/API:Main_page</code>.",
"<span class='text-info'>Hint #3:</span> Use this <a href='https://en.wikipedia.org/wiki/Special:ApiSandbox#action=query&titles=Main%20Page&prop=revisions&rvprop=content&format=jsonfm' target='_blank'>link</a> to experiment with Wikipedia's API.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen.",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [
"wJhcPwVYA1g"
],
"tests": [],
"type": "zipline",
"challengeType": 3,
"isRequired": false,
"translations": {
"es": {
"title": "Crea un buscador de Wikipedia",
"description": [
"<span class='text-info'>Objetivo:</span> Crea una aplicación con <a href='https://codepen.io' target='_blank'>CodePen.io</a> cuya funcionalidad sea similar a la de esta: <a href='https://codepen.io/FreeCodeCamp/full/wGqEga/' target='_blank'>https://codepen.io/FreeCodeCamp/full/wGqEga/</a>.",
"Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o APIs que necesites. Dale tu estilo personal.",
"<span class='text-info'>Historia de usuario:</span> Pedo obtener información acerca del clima en mi localización actual.",
"<span class='text-info'>Historia de usuario:</span> Puedo ver un icono diferente o una imagen de fondo diferente (e.g. montaña con nieve, desierto caliente) dependiendo del clima.",
"<span class='text-info'>Historia de usuario:</span> Puedo pulsar un botón para cambiar la unidad de temperatura de grados Fahrenheit a Celsius y viceversa.",
"<span class='text-info'>Historia de usuario:</span> Puedo buscar entradas en Wikipedia en un cuadro de búsqueda y ver las entradas de Wikipedia resultantes.",
"<span class='text-info'>Historia de usuario:</span>Puedo pulsar un botón para ver un artículo aleatorio de Wikipedia.",
"<span class='text-info'>Pista 1:</span> Aquí está una URL donde puedes ver una entrada aleatoria de Wikipedia: <code>https://en.wikipedia.org/wiki/Special:Random<</code>.",
"<span class='text-info'>Pista 2:</span> Este es un artículo muy útil relativo al uso del API de Wikipedia: <code>https://www.mediawiki.org/wiki/API:Main_page</code>.",
"<span class='text-info'>Pista 3:</span> Usa este <a href='https://en.wikipedia.org/wiki/Special:ApiSandbox#action=query&titles=Main%20Page&prop=revisions&rvprop=content&format=jsonfm' target='_blank'>enlace</a> para experimentar con el API de Wikipedia.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leer-Buscar-Preguntar</a> si te sientes atascado.",
"Cuando hayas terminado, pulsa el botón de \"I've completed this challenge\" e incluye un enlace a tu CodePen.",
"Puedes obtener retroalimentación sobre tu proyecto por parte de otros campistas, compartiendolo en nuestra <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Sala de chat para revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
}
}
},
{
"id": "bd7158d8c442eddfaeb5bd1f",
"title": "Use the Twitch.tv JSON API",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/FreeCodeCamp/full/Myvqmo/' target='_blank'>https://codepen.io/FreeCodeCamp/full/Myvqmo/</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I can see whether Free Code Camp is currently streaming on Twitch.tv.",
"<strong>User Story:</strong> I can click the status output and be sent directly to the Free Code Camp's Twitch.tv channel.",
"<strong>User Story:</strong> if a Twitch user is currently streaming, I can see additional details about what they are streaming.",
"<strong>User Story:</strong> I will see a placeholder notification if a streamer has closed their Twitch account (or the account never existed). You can verify this works by adding brunofin and comster404 to your array of Twitch streamers.",
"<strong>Hint:</strong> See an example call to Twitch.tv's JSONP API at <a href='http://forum.freecodecamp.com/t/use-the-twitchtv-json-api/19541' target='_blank'>http://forum.freecodecamp.com/t/use-the-twitchtv-json-api/19541</a>.",
"<strong>Hint:</strong> The relevant documentation about this API call is here: <a href='https://github.com/justintv/Twitch-API/blob/master/v3_resources/streams.md#get-streamschannel' target='_blank'>https://github.com/justintv/Twitch-API/blob/master/v3_resources/streams.md#get-streamschannel</a>.",
"<strong>Hint:</strong> Here's an array of the Twitch.tv usernames of people who regularly stream: <code>[\"ESL_SC2\", \"OgamingSC2\", \"cretetion\", \"freecodecamp\", \"storbeck\", \"habathcx\", \"RobotCaleb\", \"noobs2ninjas\"]</code>",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen.",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [
"6WrbY1d-IHI"
],
"tests": [],
"type": "zipline",
"challengeType": 3,
"isRequired": false,
"translations": {
"es": {
"title": "Usa el API JSON de Twitch.tv",
"description": [
"<span class='text-info'>Objetivo:</span> Crea una aplicación con <a href='https://codepen.io' target='_blank'>CodePen.io</a> cuya funcionalidad sea similar a la de esta: <a href='https://codepen.io/FreeCodeCamp/full/Myvqmo/' target='_blank'>https://codepen.io/FreeCodeCamp/full/Myvqmo/</a>.",
"Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o APIs que necesites. Dale tu estilo personal.",
"<span class='text-info'>Historia de usuario:</span> Puedo verificar si Free Code Camp está transmitiendo actualmente en Twitch.tv",
"<span class='text-info'>Historia de usuario:</span> Puedo pulsar el estatus y ser enviado directamente al canal de Free Code Camp en Twitch.tv.",
"<span class='text-info'>Historia de usuario:</span> Si un usuario Twitch está transmitiendo actualmente, puedo ver detalles adicionales acerca del contenido que están transmitiendo.",
"<span class='text-info'>Historia de usuario:</span> Puedo ver una notificación si el usuario ha cerrado su cuenta de Twitch (o si la cuenta nunca ha existido). Puedes verificar si esto funciona agregando brunofin y comster404 a tu vector de usuarios de Twitch.",
"<span class='text-info'>Pista:</span> Obseva una llamada de ejemplo al API JSONP de Twitch.tv en <code>http://forum.freecodecamp.com/t/use-the-twitchtv-json-api/19541</code>.",
"<span class='text-info'>Pista:</span> La documentación relevante sobre esta llamada al API está aquí: <a href='https://github.com/justintv/Twitch-API/blob/master/v3_resources/streams.md#get-streamschannel' target='_blank'>https://github.com/justintv/Twitch-API/blob/master/v3_resources/streams.md#get-streamschannel</a>.",
"<span class='text-info'>Pista:</span> Aquí está un vector de usuarios en Twitch.tv que regularmente transmiten sobre programación: <code>[\"ESL_SC2\", \"OgamingSC2\", \"cretetion\", \"freecodecamp\", \"storbeck\", \"habathcx\", \"RobotCaleb\", \"noobs2ninjas\"]</code>",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leer-Buscar-Preguntar</a> si te sientes atascado.",
"Cuando hayas terminado, pulsa el botón de \"I've completed this challenge\" e incluye un enlace a tu CodePen.",
"Puedes obtener retroalimentación sobre tu proyecto por parte de otros campistas, compartiendolo en nuestra <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Sala de chat para revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
},
"ru": {
"title": "Используйте Twitch.tv JSON API",
"description": [
"<span class='text-info'>Задание:</span> Создайте <a href='https://codepen.io' target='_blank'>CodePen.io</a> который успешно копирует вот этот: <a href='https://codepen.io/FreeCodeCamp/full/Myvqmo/' target='_blank'>https://codepen.io/FreeCodeCamp/full/Myvqmo/</a>.",
"<span class='text-info'>Правило #1:</span> Не подсматривайте код приведенного на CodePen примера. Напишите его самостоятельно.",
"<span class='text-info'>Правило #2:</span> Можете использовать любые библиотеки или API, которые потребуются.",
"<span class='text-info'>Правило #3:</span> Воссоздайте функционал приведенного примера и не стесняйтесь добавить что-нибудь от себя.",
"Реализуйте следующие <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>пользовательские истории</a>, сделайте также бонусные по желанию:",
"<span class='text-info'>Пользовательская история:</span> В качестве пользователя, я могу увидеть идет ли в данный момент на Twitch.tv трансляция Free Code Camp.",
"<span class='text-info'>Пользовательская история:</span> В качестве пользователя, я могу, кликнув на описание трансляции, перейти на канал Free Code Camp.",
"<span class='text-info'>Пользовательская история:</span> В качестве пользователя, я могу видеть дополнительную информацию о текущей трансляции Free Code Camp.",
"<span class='text-info'>Бонусная пользовательская история:</span> В качестве пользователя, я могу произвести поиск среди перечисленных каналов.",
"<span class='text-info'>Бонусная пользовательская история:</span> В качестве пользователя, я могу видеть уведомление, если создатель канала закрыл свой аккаунт на Twitch.tv. Добавьте в массив имена пользователей brunofin и comster404, чтобы убедиться, что эта функция реализована правильно.",
"<span class='text-info'>Подсказка:</span> Пример запроса к Twitch.tv JSON API: <code>https://api.twitch.tv/kraken/streams/freecodecamp</code>.",
"<span class='text-info'>Подсказка:</span> Документацию об этом запросе можно найти по ссылке: <a href='https://github.com/justintv/Twitch-API/blob/master/v3_resources/streams.md#get-streamschannel' target='_blank'>https://github.com/justintv/Twitch-API/blob/master/v3_resources/streams.md#get-streamschannel</a>.",
"<span class='text-info'>Подсказка:</span> В этом массиве приведены имена пользователей, которые регулярно пишут код онлайн: <code>[\"ESL_SC2\", \"OgamingSC2\", \"cretetion\", \"freecodecamp\", \"storbeck\", \"habathcx\", \"RobotCaleb\", \"noobs2ninjas\"]</code>",
"Если что-то не получается, воспользуйтесь <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a>.",
"Когда выполните задание кликните кнопку \"I've completed this challenge\" и добавьте ссылку на ваш CodePen. Если вы программировали с кем-то в паре, также добавьте имя вашего напарника.",
"Если вы хотите получить немедленную оценку вашего проекта, нажмите эту кнопку и добавьте ссылку на ваш CodePen. В противном случае мы проверим его перед тем как вы приступите к проектам для некоммерческих организаций.<br><br><a class='btn btn-primary btn-block' href='https://twitter.com/intent/tweet?text=Check%20out%20the%20project%20I%20just%20built%20with%20%40FreeCodeCamp:%20%0A%20%23LearnToCode%20%23JavaScript' target='_blank'>Click here then add your link to your tweet's text</a>"
]
}
}
},
{
"id": "bd7158d8c442eedfaeb5bd1c",
"title": "Build a Tic Tac Toe Game",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/FreeCodeCamp/full/KzXQgy/' target='_blank'>https://codepen.io/FreeCodeCamp/full/KzXQgy/</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I can play a game of Tic Tac Toe with the computer.",
"<strong>User Story:</strong> My game will reset as soon as it's over so I can play again.",
"<strong>User Story:</strong> I can choose whether I want to play as X or O.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen.",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [
"Ia69O1ZNGEg"
],
"tests": [],
"type": "zipline",
"challengeType": 3,
"isRequired": false,
"translations": {
"es": {
"title": "Crea un juego de Tic Tac Toe",
"description": [
"<span class='text-info'>Objetivo:</span> Construye una aplicación en <a href='https://codepen.io' target='_blank'>CodePen.io</a> cuya funcionalidad sea similar a la de esta: <a href='https://codepen.io/FreeCodeCamp/full/KzXQgy/' target='_blank'>https://codepen.io/FreeCodeCamp/full/KzXQgy/</a>.",
"Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o APIs que necesites. Dale tu estilo personal.",
"<span class='text-info'>Historia de usuario:</span> Puedo jugar un juego de Tic Tac Toe contra el computador.",
"<span class='text-info'>Historia de usuario:</span> Mi juego se reiniciará tan pronto como termine para poder jugar de nuevo.",
"<span class='text-info'>Historia de usuario:</span> Puedo elegir si quiero jugar como X o como O.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leer-Buscar-Preguntar</a> si te sientes atascado.",
"Cuando hayas terminado, pulsa el botón de \"I've completed this challenge\" e incluye un enlace a tu CodePen.",
"Puedes obtener retroalimentación sobre tu proyecto por parte de otros campistas, compartiéndolo en nuestra <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Sala de chat para revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
}
}
},
{
"id": "bd7158d8c442eddfaeb5bd1c",
"title": "Build a Simon Game",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/Em-Ant/full/QbRyqq/' target='_blank'>https://codepen.io/FreeCodeCamp/full/obYBjE</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I am presented with a random series of button presses.",
"<strong>User Story:</strong> Each time I input a series of button presses correctly, I see the same series of button presses but with an additional step.",
"<strong>User Story:</strong> I hear a sound that corresponds to each button both when the series of button presses plays, and when I personally press a button.",
"<strong>User Story:</strong> If I press the wrong button, I am notified that I have done so, and that series of button presses starts again to remind me of the pattern so I can try again.",
"<strong>User Story:</strong> I can see how many steps are in the current series of button presses.",
"<strong>User Story:</strong> If I want to restart, I can hit a button to do so, and the game will return to a single step.",
"<strong>User Story:</strong> I can play in strict mode where if I get a button press wrong, it notifies me that I have done so, and the game restarts at a new random series of button presses.",
"<strong>User Story:</strong> I can win the game by getting a series of 20 steps correct. I am notified of my victory, then the game starts over.",
"<strong>Hint:</strong> Here are mp3s you can use for each button: <code>https://s3.amazonaws.com/freecodecamp/simonSound1.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound2.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound3.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound4.mp3</code>.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen.",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [
"tAPut8a47bA"
],
"tests": [],
"type": "zipline",
"challengeType": 3,
"isRequired": false,
"translations": {
"es": {
"title": "Construye un juego de Simon",
"description": [
"<span class='text-info'>Objetivo:</span> Construye una aplicación en <a href='https://codepen.io' target='_blank'>CodePen.io</a> cuya funcionalidad sea similar a la de esta: <a href='https://codepen.io/Em-Ant/full/QbRyqq/' target='_blank'>https://codepen.io/Em-Ant/full/QbRyqq/</a>.",
"Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o APIs que necesites. Dale tu estilo personal.",
"<span class='text-info'>Historia de usuario:</span> Se me presenta una serie aleatoria de pulsaciones a botones.",
"<span class='text-info'>Historia de usuario:</span> Cada vez que presiono una secuencia de pulsaciones correctamente, veo que vuelve a ejecutarse la misma serie de pulsaciones con un paso adicional.",
"<span class='text-info'>Historia de usuario:</span> Escucho un sonido que corresponde a cada botón cuando se ejecuta una secuencia de pulsaciones, así como cuando yo presiono un botón.",
"<span class='text-info'>Historia de usuario:</span> Si presiono el botón equivocado, se me notifica sobre mi error, y se ejecuta de nuevo la serie correcta de pulsaciones para recordarme cuál es la secuencia correcta, tras lo cual puedo intentar de nuevo.",
"<span class='text-info'>Historia de usuario:</span> Puedo ver cuántos pasos hay en la serie de pulsaciones actual.",
"<span class='text-info'>Historia de usuario:</span> Si deseo reiniciar, puedo pulsar un botón para hacerlo, y el juego comenzará desde una secuencia con un solo paso.",
"<span class='text-info'>Historia de usuario:</span> Puedo jugar en modo estricto donde si presiono el botón equivocado, se me notifica de mi error, y el juego vuelve a comenzar con una nueva serie aleatoria de colores.",
"<span class='text-info'>Historia de usuario:</span> Puedo ganar el juego si completo 20 pasos correctos. Se me notifica sobre mi victoria, tras lo cual el juego se reinicia.",
"<span class='text-info'>Pista:</span> Aquí hay algunos mp3s que puedes utilizar para tus botones: <code>https://s3.amazonaws.com/freecodecamp/simonSound1.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound2.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound3.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound4.mp3</code>.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Leer-Buscar-Preguntar</a> si te sientes atascado.",
"Cuando hayas terminado, pulsa el botón de \"I've completed this challenge\" e incluye un enlace a tu CodePen.",
"Puedes obtener retroalimentación sobre tu proyecto por parte de otros campistas, compartiéndolo en nuestra <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Sala de chat para revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
}
}
},
{
"id": "bd7156d8c242eddfaeb5bd13",
"title": "Build a Camper Leaderboard",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/FreeCodeCamp/full/eZGMjp/' target='_blank'>https://codepen.io/FreeCodeCamp/full/eZGMjp/</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I can see a table of the Free Code Camp campers who've earned the most brownie points in the past 30 days.",
"<strong>User Story:</strong> I can see how many brownie points they've earned in the past 30 days, and how many they've earned total.",
"<strong>User Story:</strong> I can toggle between sorting the list by how many brownie points they've earned in the past 30 days and by how many brownie points they've earned total.",
"<strong>Hint:</strong> To get the top 100 campers for the last 30 days: <a href='https://fcctop100.herokuapp.com/api/fccusers/top/recent' target='_blank'>https://fcctop100.herokuapp.com/api/fccusers/top/recent</a>.",
"<strong>Hint:</strong> To get the top 100 campers of all time: <a href='https://fcctop100.herokuapp.com/api/fccusers/top/alltime' target='_blank'>https://fcctop100.herokuapp.com/api/fccusers/top/alltime</a>.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen. ",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"releasedOn": "January 1, 2016",
"challengeSeed": [
"LJQcFNo_-QY"
],
"tests": [],
"type": "zipline",
"isRequired": false,
"challengeType": 3,
"translations": {
"es": {
"title": "Crea un marcador para los campistas",
"description": [
"<strong>Objetivo:</strong> Construye una aplicación en <a href='https://codepen.io' target='_blank'>CodePen.io</a> que funcione de forma similar al siguiente ejemplo: <a href='https://codepen.io/FreeCodeCamp/full/eZGMjp/' target='_blank'>https://codepen.io/FreeCodeCamp/full/eZGMjp/</a>.",
"Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o API que sea necesaria. ¡Ponle un toque personal!.",
"<strong>Historia de usuario:</strong> Puedo ver un tablero con los campistas de Free Code Camp que han ganado más puntos de brownie en los últimos 30 días.",
"<strong>Historia de usuario:</strong> Puedo ver cuántos puntos de brownie han ganado en los últimos 30 días, y cuántos han ganado en total.",
"<strong>Historia de usuario:</strong> Puedo elegir entre dos formas de organizar la lista: 1) En base a cuántos puntos de brownie se han ganado en los últimos 30 días. 2) En base al número de puntos de brownie que han ganado en total.",
"<strong>Pista:</strong> Para obtener los 100 mejores campistas para los últimos 30 días: <a href='https://fcctop100.herokuapp.com/api/fccusers/top/recent' target='_blank'>https://fcctop100.herokuapp.com/api/fccusers/top/recent</a>.",
"<strong>Pista:</strong> Para obtener los 100 mejores campistas de toda la historia: <a href='http://fcctop100.herokuapp.com/api/fccusers/top/alltime' target='_blank'>http://fcctop100.herokuapp.com/api/fccusers/top/alltime</a>.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado.",
"Cuando termines, haz clic en el botón de \"I've completed this challenge\" e incluye el vínculo de tu proyecto en CodePen. ",
"Puedes obtener retroalimentación acerca de tu proyecto de parte de tus compañeros campistas compartiéndolo en nuestro <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Cuarto de revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
},
"ru": {
"title": "Создайте таблицу Кемперов-Лидеров",
"description": [
"<strong>Задание:</strong> Создайте приложение <a href='https://codepen.io' target='_blank'>CodePen.io</a>, функционал которого схож с этим: <a href='https://codepen.io/FreeCodeCamp/full/eZGMjp/' target='_blank'>https://codepen.io/FreeCodeCamp/full/eZGMjp/</a>.",
"Приложение должно удовлетворять нижеприведённым <a href='https://ru.wikipedia.org/wiki/Пользовательские_истории' target='_blank'>пользовательским историям</a>. Используйте любые библиотеки или API, которые потребуются. Придайте ему свой личный стиль.",
"<strong>Пользовательская история:</strong> Я могу видеть таблицу кемперов Free Code Camp, которые получили наибольшее количество очков за последние 30 дней.",
"<strong>Пользовательская история:</strong> Я могу видеть сколько очков они получили за последние 30 дней, и сколько они получили их всего.",
"<strong>Пользовательская история:</strong> Я могу отсортировать список по количеству очков, которые они получили за последние 30 дней, и по общему количеству полученных очков.",
"<strong>Подсказка:</strong> Ссылка на топ 100 кемперов за последние 30 дней в формате JSON: <a href='https://fcctop100.herokuapp.com/api/fccusers/top/recent' target='_blank'>https://fcctop100.herokuapp.com/api/fccusers/top/recent</a>.",
"<strong>Подсказка:</strong> Ссылка на топ 100 кемперов за все время в формате JSON: <a href='http://fcctop100.herokuapp.com/api/fccusers/top/alltime' target='_blank'>http://fcctop100.herokuapp.com/api/fccusers/top/alltime</a>.",
"Если что-то не получается, не забывайте пользоваться методом <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Читай-Ищи-Спрашивай</a>.",
"Когда закончите, нажмите кнопку \"I've completed this challenge\" и укажите ссылку на вашу работу на CodePen.",
"Вы можете получить отзыв о вашем проекте от коллег, поделившись ссылкой на него в нашем <a href='//gitter.im/freecodecamp/codereview' target='_blank'>чате для рассмотрения кода</a>. Также вы можете поделиться ею через Twitter и на странице Free Code Camp вашего города на Facebook."
]
}
}
},
{
"id": "bd7153d8c242eddfaeb5bd13",
"title": "Build a Roguelike Dungeon Crawler Game",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/FreeCodeCamp/full/PNJRyd/' target='_blank'>https://codepen.io/FreeCodeCamp/full/PNJRyd/</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I have health, a level, and a weapon. I can pick up a better weapon. I can pick up health items.",
"<strong>User Story:</strong> All the items and enemies on the map are arranged at random.",
"<strong>User Story:</strong> I can move throughout a map, discovering items.",
"<strong>User Story:</strong> I can move anywhere within the map's boundaries, but I can't move through an enemy until I've beaten it.",
"<strong>User Story:</strong> Much of the map is hidden. When I take a step, all spaces that are within a certain number of spaces from me are revealed.",
"<strong>User Story:</strong> When I beat an enemy, the enemy goes away and I get XP, which eventually increases my level.",
"<strong>User Story:</strong> When I fight an enemy, we take turns damaging each other until one of us loses. I do damage based off of my level and my weapon. The enemy does damage based off of its level. Damage is somewhat random within a range.",
"<strong>User Story:</strong> When I find and beat the boss, I win.",
"<strong>User Story:</strong> The game should be challenging, but theoretically winnable.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen. ",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"releasedOn": "January 1, 2016",
"challengeSeed": [
"BwyKI9iePUQ"
],
"tests": [],
"type": "zipline",
"isRequired": false,
"challengeType": 3,
"translations": {
"es": {
"title": "Crea un juego de dragones al estilo Rogue",
"description": [
"<strong>Objetivo:</strong> Construye una aplicación en <a href='https://codepen.io' target='_blank'>CodePen.io</a> que funcione de forma similar al siguiente ejemplo: <a href='https://codepen.io/FreeCodeCamp/full/PNJRyd/' target='_blank'>https://codepen.io/FreeCodeCamp/full/PNJRyd/</a>.",
"Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o API que sea necesaria. ¡Ponle un toque personal!.",
"<strong>Historia de usuario:</strong> Tengo energía, nivel de habilidad y un arma. Puedo recoger un arma mejor. Puedo recoger ítems que recuperan mi energía.",
"<strong>Historia de usuario:</strong> Todos los ítems y los enemigos en el mapa están colocados aleatoriamente.",
"<strong>Historia de usuario:</strong> Puedo moverme a lo largo de un mapa y descubrir ítems.",
"<strong>Historia de usuario:</strong> Puedo moverme hacia cualquier parte dentro de los límites del mapa, pero no puedo moverme sobre un enemigo hasta que lo haya vencido.",
"<strong>Historia de usuario:</strong> Gran parte del mapa está escondido. Cuando doy un paso, todos los espacios que están a cierto número de espacios de distancia de mi son revelados.",
"<strong>Historia de usuario:</strong> Cuando venzo un enemigo, este desaparece y yo gano puntos de experiencia (XP), lo que eventualmente me permite aumentar de nivel.",
"<strong>Historia de usuario:</strong> Cuando peleo con un enemigo, tomamos turnos haciéndonos daño hasta que uno de los dos pierde. El daño que hago está basado en mi nivel de experiencia y en el arma que estoy utilizando. El enemigo hace daño basado en su nivel. El daño es aleatorio dentro de cierto márgen.",
"<strong>Historia de usuario:</strong> Gano el juego cuando encuentre y venza al jefe.",
"<strong>Historia de usuario:</strong> El juego debe representar un reto, pero ganar debe ser teóricamente posible.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado.",
"Cuando termines, haz clic en el botón de \"I've completed this challenge\" e incluye el vínculo de tu proyecto en CodePen. ",
"Puedes obtener retroalimentación acerca de tu proyecto de parte de tus compañeros campistas compartiéndolo en nuestro <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Cuarto de revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
},
"ru": {
"title": "Создайте Roguelike-подобную игру Подземелье",
"description": [
"<strong>Задание:</strong> Создайте приложение <a href='https://codepen.io' target='_blank'>CodePen.io</a>, функционал которого схож с этим: <a href='https://codepen.io/FreeCodeCamp/full/PNJRyd/' target='_blank'>https://codepen.io/FreeCodeCamp/full/PNJRyd/</a>.",
"Приложение должно удовлетворять нижеприведённым <a href='https://ru.wikipedia.org/wiki/Пользовательские_истории' target='_blank'>пользовательским историям</a>. Используйте любые библиотеки или API, которые потребуются. Придайте ему свой личный стиль.",
"<strong>Пользовательская история:</strong> У меня есть жизни, уровень и оружие. Я могу подобрать оружие получше. Я могу подобрать очки здоровья.",
"<strong>Пользовательская история:</strong> Все предметы и враги располагаются на карте случайным образом.",
"<strong>Пользовательская история:</strong> Я могу передвигаться по карте, обнаруживая новые предметы.",
"<strong>Пользовательская история:</strong> Я могу двигаться куда угодно в рамках карты, но не могу продвинуться дальше врага, пока он не будет побежден.",
"<strong>Пользовательская история:</strong> Большая часть карты скрыта. Когда я делаю шаг, все клетки в определенном количестве клеток от меня становятся видимы.",
"<strong>Пользовательская история:</strong> Когда я побеждаю врага, враг исчезает, а я получаю очки опыта (XP), что увеличивает мой уровень.",
"<strong>Пользовательская история:</strong> Когда я веду бой с врагом, мы поочередно наносим друг-другу повреждения, до тех пор пока кто-нибудь не победит. Я наношу повреждения, которые зависят от моего уровня и моего оружия. Враг наносит повреждения, которые зависят от его уровня. Значение повреждений распределено случайным образом в некотором диапазоне.",
"<strong>Пользовательская история:</strong> Когад я нахожу и побеждаю босса, я выигрываю игру.",
"<strong>Пользовательская история:</strong> Игра должна быть интересной и достаточно сложной, но теоретически проходимой.",
"Если что-то не получается, не забывайте пользоваться методом <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Читай-Ищи-Спрашивай</a>.",
"Когда закончите, нажмите кнопку \"I've completed this challenge\" и укажите ссылку на вашу работу на CodePen.",
"Вы можете получить отзыв о вашем проекте от коллег, поделившись ссылкой на него в нашем <a href='//gitter.im/freecodecamp/codereview' target='_blank'>чате для рассмотрения кода</a>. Также вы можете поделиться ею через Twitter и на странице Free Code Camp вашего города на Facebook."
]
}
}
},
{
"id": "bd7150d8c442eddfafb5bd1c",
"title": "P2P Video Chat Application",
"description": [
"<strong>Objective:</strong> Build a <a href='https://hyperdev.com' target='_blank'>Hyperdev</a> app that is functionally similar to this: <a href='https://unequaled-cement.hyperdev.space' target='_blank'>https://unequaled-cement.hyperdev.space</a>.",
"Fulfill the below <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> Upon arriving, the browser will prompt me to access my camera and microphone. ",
"<strong>User Story:</strong> After I give it permission, I am prompted to type in a room name.",
"<strong>User Story:</strong> Once I type in the room name, a room will be created if no room of that name existed before. ",
"<strong>User Story:</strong> A friend of mine can subsequently go to the same website, type in the same room I entered, and join the same room, then enter into a video chat with me. ",
"<strong>User Story:</strong> If I type in a room name, and there are already two people in that room, I get a notification that the room is full. ",
"<strong>User Story:</strong> Anyone can create or join any room. And there can be any number of rooms, but all of them must have unique names. ",
"<strong>User Story:</strong> I can choose to not permit the site to access my microphone and webcam. If I choose not to do this, if some other driver problem occurs, I see an error message saying these are required. ",
"<strong>User Story:</strong> When I choose to cancel the room name input step, or if I type in no name, or just spaces, it should again ask me again to type in a valid room name. ",
"<strong>User Story:</strong> If one of the two people in the room get disconnected, they can reconnect to the same room and continue chatting.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your Hyperdev App.",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [],
"tests": [],
"type": "zipline",
"challengeType": 3,
"isRequired": false
},
{
"id": "bd7198d8c242eddfaeb5bd13",
"title": "Show National Contiguity with a Force Directed Graph",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/FreeCodeCamp/full/xVopBo' target='_blank'>https://codepen.io/FreeCodeCamp/full/xVopBo</a>.",
"Fulfill the following <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I can see a Force-directed Graph that shows which countries share borders.",
"<strong>User Story:</strong> I can see each country's flag on its node.",
"<strong>Hint:</strong> Here's a dataset you can use to build this: <a href='https://raw.githubusercontent.com/DealPete/forceDirected/master/countries.json' target='_blank'>https://raw.githubusercontent.com/DealPete/forceDirected/master/countries.json</a>",
"<strong>Hint:</strong> You can create a spritesheet of national flags at <a href='https://www.flag-sprites.com' target='_blank'>https://www.flag-sprites.com</a>.",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen. ",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [
"etBaP3IdlIE"
],
"tests": [],
"isRequired": true,
"releasedOn": "January 1, 2016",
"type": "zipline",
"challengeType": 3,
"translations": {
"es": {
"title": "Muestra asociaciones utilizando un gráfico de fuerzas dirigidas",
"description": [
"<strong>Objetivo:</strong> Construye una aplicación en <a href='https://codepen.io' target='_blank'>CodePen.io</a> que funcione de forma similar al siguiente ejemplo: <a href='https://codepen.io/FreeCodeCamp/full/KVNNXY' target='_blank'>https://codepen.io/FreeCodeCamp/full/KVNNXY</a>.",
"<strong>Regla #1:</strong> No veas el código del proyecto de ejemplo. Encuentra la forma de hacerlo por tu cuenta.",
"<strong>Regla #2:</strong> Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o API que sea necesaria. ¡Ponle un toque personal!.",
"<strong>Regla #3:</strong> Debes utilizar D3.js para construir este proyecto.",
"<strong>Historia de usuario:</strong> Puedo ver un gráfico de fuerza dirigida que muestra qué campistas están publicando enlaces en Camper News hacia qué dominios.",
"<strong>Historia de usuario:</strong> Puedo ver el icono de cada campista en su nodo respectivo.",
"<strong>Historia de usuario:</strong> Puedo ver la relación entre los campistas y los dominios que publican.",
"<strong>Historia de usuario:</strong> Puedo conocer aproximadamente cuántas veces los campistas han enlazado un dominio en particular a partir del tamaño del nodo respectivo.",
"<strong>Historia de usuario:</strong> Puedo conocer aproximadamente cuántas veces un campista específico ha publicado un enlace a partir del tamaño de su nodo.",
"<strong>Pista:</strong> La siguiente es la ruta del API de noticias de Camper News: <code>http://www.freecodecamp.com/news/hot</code>.",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado.",
"Cuando termines, haz clic en el botón de \"I've completed this challenge\" e incluye el vínculo de tu proyecto en CodePen. ",
"Puedes obtener retroalimentación acerca de tu proyecto de parte de tus compañeros campistas compartiéndolo en nuestro <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Cuarto de revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
}
}
},
{
"id": "bd7108d8c242eddfaeb5bd13",
"title": "Map Data Across the Globe",
"description": [
"<strong>Objective:</strong> Build a <a href='https://codepen.io' target='_blank'>CodePen.io</a> app that is functionally similar to this: <a href='https://codepen.io/FreeCodeCamp/full/mVEJag' target='_blank'>https://codepen.io/FreeCodeCamp/full/mVEJag</a>.",
"Fulfill the following <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a>. Use whichever libraries or APIs you need. Give it your own personal style.",
"<strong>User Story:</strong> I can see where all Meteorites landed on a world map.",
"<strong>User Story:</strong> I can tell the relative size of the meteorite, just by looking at the way it's represented on the map.",
"<strong>User Story:</strong> I can mouse over the meteorite's data point for additional data.",
"<strong>Hint:</strong> Here's a dataset you can use to build this: <a href='https://raw.githubusercontent.com/FreeCodeCamp/ProjectReferenceData/master/meteorite-strike-data.json' target='_blank'>https://raw.githubusercontent.com/FreeCodeCamp/ProjectReferenceData/master/meteorite-strike-data.json</a>",
"Remember to use <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> if you get stuck.",
"When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen. ",
"You can get feedback on your project by sharing it with your friends on Facebook."
],
"challengeSeed": [
"kSAqct10gA0"
],
"tests": [],
"isRequired": true,
"releasedOn": "January 1, 2016",
"type": "zipline",
"challengeType": 3,
"translations": {
"es": {
"title": "Mapea datos a lo largo del Globo",
"description": [
"<strong>Objetivo:</strong> Construye una aplicación en <a href='https://codepen.io' target='_blank'>CodePen.io</a> que funcione de forma similar al siguiente ejemplo: <a href='https://codepen.io/FreeCodeCamp/full/mVEJag' target='_blank'>https://codepen.io/FreeCodeCamp/full/mVEJag</a>.",
"<strong>Regla #1:</strong> No veas el código del proyecto de ejemplo. Encuentra la forma de hacerlo por tu cuenta.",
"<strong>Regla #2:</strong> Satisface las siguientes <a href='https://en.wikipedia.org/wiki/User_story' target='_blank'>historias de usuario</a>. Usa cualquier librería o API que sea necesaria. ¡Ponle un toque personal!.",
"<strong>Regla #3:</strong> Debes utilizar D3.js para construir este proyecto.",
"<strong>Historia de usuario:</strong> Puedo ver a dónde cayeron todos los meteoritos en un mapa mundi.",
"<strong>Historia de usuario:</strong> Puedo distinguir el tamaño relativo de cada meteorito simplemente viendo la forma en que está representado en el mapa.",
"<strong>Historia de usuario:</strong> Puedo mover el ratón sobre el dato de cada meteorito para obtener información adicional.",
"<strong>Pista:</strong> Puedes utilizar el siguiente conjunto de datos para construir tu proyecto: <a href='https://raw.githubusercontent.com/FreeCodeCamp/ProjectReferenceData/master/meteorite-strike-data.json' target='_blank'>https://raw.githubusercontent.com/FreeCodeCamp/ProjectReferenceData/master/meteorite-strike-data.json</a>",
"Recuerda utilizar <a href='http://forum.freecodecamp.com/t/how-to-get-help-when-you-are-stuck/19514' target='_blank'>Read-Search-Ask</a> si te sientes atascado.",
"Cuando termines, haz clic en el botón de \"I've completed this challenge\" e incluye el vínculo de tu proyecto en CodePen. ",
"Puedes obtener retroalimentación acerca de tu proyecto de parte de tus compañeros campistas compartiéndolo en nuestro <a href='//gitter.im/freecodecamp/codereview' target='_blank'>Cuarto de revisión de código</a>. También puedes compartirlo en Twitter y en el campamento de tu ciudad (en Facebook)."
]
}
}
}
]
}