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fix: added 15 missing solutions (#35745)

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This commit is contained in:
Randell Dawson 2019-04-28 02:01:14 -07:00 committed by The Coding Aviator
parent bab94ccf00
commit 102c2b829a
15 changed files with 252 additions and 15 deletions
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7
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/add-elements-to-the-end-of-an-array-using-concat-instead-of-push.english.md
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@ -64,6 +64,11 @@ nonMutatingPush(first, second);
<section id='solution'>
```js
// solution required
function nonMutatingPush(original, newItem) {
return original.concat(newItem);
}
var first = [1, 2, 3];
var second = [4, 5];
nonMutatingPush(first, second);
```
</section>

11
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/apply-functional-programming-to-convert-strings-to-url-slugs.english.md
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@ -71,6 +71,15 @@ var winterComing = urlSlug(globalTitle); // Should be "winter-is-coming"
<section id='solution'>
```js
// solution required
// the global variable
var globalTitle = "Winter Is Coming";
// Add your code below this line
function urlSlug(title) {
return title.trim().split(/\s+/).join("-").toLowerCase();
}
// Add your code above this line
var winterComing = urlSlug(globalTitle); // Should be "winter-is-coming"
```
</section>

6
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/combine-an-array-into-a-string-using-the-join-method.english.md
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@ -63,6 +63,10 @@ sentensify("May-the-force-be-with-you");
<section id='solution'>
```js
// solution required
function sentensify(str) {
// Add your code below this line
return str.split(/\W/).join(' ');
// Add your code above this line
}
```
</section>

9
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/combine-two-arrays-using-the-concat-method.english.md
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@ -60,6 +60,13 @@ nonMutatingConcat(first, second);
<section id='solution'>
```js
// solution required
function nonMutatingConcat(original, attach) {
// Add your code below this line
return original.concat(attach);
// Add your code above this line
}
var first = [1, 2, 3];
var second = [4, 5];
nonMutatingConcat(first, second);
```
</section>

18
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/implement-map-on-a-prototype.english.md
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@ -64,6 +64,22 @@ var new_s = s.myMap(function(item){
<section id='solution'>
```js
// solution required
// the global Array
var s = [23, 65, 98, 5];
Array.prototype.myMap = function(callback){
var newArray = [];
// Add your code below this line
for (var elem of this) {
newArray.push(callback(elem));
}
// Add your code above this line
return newArray;
};
var new_s = s.myMap(function(item){
return item * 2;
});
```
</section>

18
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/implement-the-filter-method-on-a-prototype.english.md
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@ -62,6 +62,22 @@ var new_s = s.myFilter(function(item){
<section id='solution'>
```js
// solution required
// the global Array
var s = [23, 65, 98, 5];
Array.prototype.myFilter = function(callback){
var newArray = [];
// Add your code below this line
for (let i = 0;i<this.length;i++) {
if (callback(this[i]))
newArray.push(this[i]);
}
// Add your code above this line
return newArray;
};
var new_s = s.myFilter(function(item){
return item % 2 === 1;
});
```
</section>

30
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/refactor-global-variables-out-of-functions.english.md
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@ -88,6 +88,34 @@ console.log(bookList);
<section id='solution'>
```js
// solution required
// the global variable
var bookList = ["The Hound of the Baskervilles", "On The Electrodynamics of Moving Bodies", "Philosophiæ Naturalis Principia Mathematica", "Disquisitiones Arithmeticae"];
/* This function should add a book to the list and return the list */
// New parameters should come before the bookName one
// Add your code below this line
function add (bookList, bookName) {
return [...bookList, bookName];
// Add your code above this line
}
/* This function should remove a book from the list and return the list */
// New parameters should come before the bookName one
// Add your code below this line
function remove (bookList, bookName) {
const bookListCopy = [...bookList];
const bookNameIndex = bookList.indexOf(bookName);
if (bookNameIndex >= 0) {
bookListCopy.splice(bookNameIndex, 1);
}
return bookListCopy;
// Add your code above this line
}
var newBookList = add(bookList, 'A Brief History of Time');
var newerBookList = remove(bookList, 'On The Electrodynamics of Moving Bodies');
var newestBookList = remove(add(bookList, 'A Brief History of Time'), 'On The Electrodynamics of Moving Bodies');
```
</section>

8
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/remove-elements-from-an-array-using-slice-instead-of-splice.english.md
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@ -61,6 +61,12 @@ nonMutatingSplice(inputCities);
<section id='solution'>
```js
// solution required
function nonMutatingSplice(cities) {
// Add your code below this line
return cities.slice(0,3);
// Add your code above this line
}
var inputCities = ["Chicago", "Delhi", "Islamabad", "London", "Berlin"];
nonMutatingSplice(inputCities);
```
</section>

8
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/return-a-sorted-array-without-changing-the-original-array.english.md
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@ -58,6 +58,12 @@ nonMutatingSort(globalArray);
<section id='solution'>
```js
// solution required
var globalArray = [5, 6, 3, 2, 9];
function nonMutatingSort(arr) {
// Add your code below this line
return [].concat(arr).sort((a,b) => a-b);
// Add your code above this line
}
nonMutatingSort(globalArray);
```
</section>

8
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/return-part-of-an-array-using-the-slice-method.english.md
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@ -62,6 +62,12 @@ sliceArray(inputAnim, 1, 3);
<section id='solution'>
```js
// solution required
function sliceArray(anim, beginSlice, endSlice) {
// Add your code below this line
return anim.slice(beginSlice, endSlice)
// Add your code above this line
}
var inputAnim = ["Cat", "Dog", "Tiger", "Zebra", "Ant"];
sliceArray(inputAnim, 1, 3);
```
</section>

7
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/sort-an-array-alphabetically-using-the-sort-method.english.md
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@ -64,6 +64,11 @@ alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
<section id='solution'>
```js
// solution required
function alphabeticalOrder(arr) {
// Add your code below this line
return arr.sort();
// Add your code above this line
}
alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
```
</section>

6
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/split-a-string-into-an-array-using-the-split-method.english.md
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@ -60,6 +60,10 @@ splitify("Hello World,I-am code");
<section id='solution'>
```js
// solution required
function splitify(str) {
// Add your code below this line
return str.split(/\W/);
// Add your code above this line
}
```
</section>

7
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/use-the-every-method-to-check-that-every-element-in-an-array-meets-a-criteria.english.md
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@ -59,6 +59,11 @@ checkPositive([1, 2, 3, -4, 5]);
<section id='solution'>
```js
// solution required
function checkPositive(arr) {
// Add your code below this line
return arr.every(num => num > 0);
// Add your code above this line
}
checkPositive([1, 2, 3, -4, 5]);
```
</section>

117
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/use-the-filter-method-to-extract-data-from-an-array.english.md
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@ -172,6 +172,121 @@ console.log(filteredList);
<section id='solution'>
```js
// solution required
// the global variable
var watchList = [
{
"Title": "Inception",
"Year": "2010",
"Rated": "PG-13",
"Released": "16 Jul 2010",
"Runtime": "148 min",
"Genre": "Action, Adventure, Crime",
"Director": "Christopher Nolan",
"Writer": "Christopher Nolan",
"Actors": "Leonardo DiCaprio, Joseph Gordon-Levitt, Ellen Page, Tom Hardy",
"Plot": "A thief, who steals corporate secrets through use of dream-sharing technology, is given the inverse task of planting an idea into the mind of a CEO.",
"Language": "English, Japanese, French",
"Country": "USA, UK",
"Awards": "Won 4 Oscars. Another 143 wins & 198 nominations.",
"Poster": "http://ia.media-imdb.com/images/M/MV5BMjAxMzY3NjcxNF5BMl5BanBnXkFtZTcwNTI5OTM0Mw@@._V1_SX300.jpg",
"Metascore": "74",
"imdbRating": "8.8",
"imdbVotes": "1,446,708",
"imdbID": "tt1375666",
"Type": "movie",
"Response": "True"
},
{
"Title": "Interstellar",
"Year": "2014",
"Rated": "PG-13",
"Released": "07 Nov 2014",
"Runtime": "169 min",
"Genre": "Adventure, Drama, Sci-Fi",
"Director": "Christopher Nolan",
"Writer": "Jonathan Nolan, Christopher Nolan",
"Actors": "Ellen Burstyn, Matthew McConaughey, Mackenzie Foy, John Lithgow",
"Plot": "A team of explorers travel through a wormhole in space in an attempt to ensure humanity's survival.",
"Language": "English",
"Country": "USA, UK",
"Awards": "Won 1 Oscar. Another 39 wins & 132 nominations.",
"Poster": "http://ia.media-imdb.com/images/M/MV5BMjIxNTU4MzY4MF5BMl5BanBnXkFtZTgwMzM4ODI3MjE@._V1_SX300.jpg",
"Metascore": "74",
"imdbRating": "8.6",
"imdbVotes": "910,366",
"imdbID": "tt0816692",
"Type": "movie",
"Response": "True"
},
{
"Title": "The Dark Knight",
"Year": "2008",
"Rated": "PG-13",
"Released": "18 Jul 2008",
"Runtime": "152 min",
"Genre": "Action, Adventure, Crime",
"Director": "Christopher Nolan",
"Writer": "Jonathan Nolan (screenplay), Christopher Nolan (screenplay), Christopher Nolan (story), David S. Goyer (story), Bob Kane (characters)",
"Actors": "Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine",
"Plot": "When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, the caped crusader must come to terms with one of the greatest psychological tests of his ability to fight injustice.",
"Language": "English, Mandarin",
"Country": "USA, UK",
"Awards": "Won 2 Oscars. Another 146 wins & 142 nominations.",
"Poster": "http://ia.media-imdb.com/images/M/MV5BMTMxNTMwODM0NF5BMl5BanBnXkFtZTcwODAyMTk2Mw@@._V1_SX300.jpg",
"Metascore": "82",
"imdbRating": "9.0",
"imdbVotes": "1,652,832",
"imdbID": "tt0468569",
"Type": "movie",
"Response": "True"
},
{
"Title": "Batman Begins",
"Year": "2005",
"Rated": "PG-13",
"Released": "15 Jun 2005",
"Runtime": "140 min",
"Genre": "Action, Adventure",
"Director": "Christopher Nolan",
"Writer": "Bob Kane (characters), David S. Goyer (story), Christopher Nolan (screenplay), David S. Goyer (screenplay)",
"Actors": "Christian Bale, Michael Caine, Liam Neeson, Katie Holmes",
"Plot": "After training with his mentor, Batman begins his fight to free crime-ridden Gotham City from the corruption that Scarecrow and the League of Shadows have cast upon it.",
"Language": "English, Urdu, Mandarin",
"Country": "USA, UK",
"Awards": "Nominated for 1 Oscar. Another 15 wins & 66 nominations.",
"Poster": "http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg",
"Metascore": "70",
"imdbRating": "8.3",
"imdbVotes": "972,584",
"imdbID": "tt0372784",
"Type": "movie",
"Response": "True"
},
{
"Title": "Avatar",
"Year": "2009",
"Rated": "PG-13",
"Released": "18 Dec 2009",
"Runtime": "162 min",
"Genre": "Action, Adventure, Fantasy",
"Director": "James Cameron",
"Writer": "James Cameron",
"Actors": "Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang",
"Plot": "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.",
"Language": "English, Spanish",
"Country": "USA, UK",
"Awards": "Won 3 Oscars. Another 80 wins & 121 nominations.",
"Poster": "http://ia.media-imdb.com/images/M/MV5BMTYwOTEwNjAzMl5BMl5BanBnXkFtZTcwODc5MTUwMw@@._V1_SX300.jpg",
"Metascore": "83",
"imdbRating": "7.9",
"imdbVotes": "876,575",
"imdbID": "tt0499549",
"Type": "movie",
"Response": "True"
}
];
// Add your code below this line
let filteredList = watchList.filter(e => e.imdbRating >= 8).map( ({Title: title, imdbRating: rating}) => ({title, rating}) );
// Add your code above this line
```
</section>

7
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/use-the-some-method-to-check-that-any-elements-in-an-array-meet-a-criteria.english.md
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@ -59,6 +59,11 @@ checkPositive([1, 2, 3, -4, 5]);
<section id='solution'>
```js
// solution required
function checkPositive(arr) {
// Add your code below this line
return arr.some(elem => elem > 0);
// Add your code above this line
}
checkPositive([1, 2, 3, -4, 5]);
```
</section>