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fix(curriculum): Consolidated comments for JavaScript Algorithms and Data Structures challenges - part 1 of 4 (#38258)

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* fix: consolidate/remove comments

* fix: remove => from comment

* fix: reverted changes to add same changes to another PR

* fix: removed 'the' from sentence

Co-Authored-By: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

* fix: removed 'the' from the sentence

Co-Authored-By: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
This commit is contained in:
Tom
2020-03-04 13:08:54 -06:00
committed by GitHub
parent 5294936667
commit 17a55c6e18
74 changed files with 123 additions and 237 deletions
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24
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/learn-about-functional-programming.english.md
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@ -41,17 +41,14 @@ tests:
<div id='js-seed'>
```js
/**
* A long process to prepare tea.
* @return {string} A cup of tea.
**/
// Function that returns a string representing a cup of green tea
const prepareTea = () => 'greenTea';
/**
* Get given number of cups of tea.
* @param {number} numOfCups Number of required cups of tea.
* @return {Array<string>} Given amount of tea cups.
**/
/*
Given a function (representing the tea type) and number of cups needed, the
following function returns an array of strings (each representing a cup of
a specific type of tea).
*/
const getTea = (numOfCups) => {
const teaCups = [];
@ -59,15 +56,12 @@ const getTea = (numOfCups) => {
const teaCup = prepareTea();
teaCups.push(teaCup);
}
return teaCups;
};
// Add your code below this line
const tea4TeamFCC = null; // :(
// Add your code above this line
// Only change code below this line
const tea4TeamFCC = null;
// Only change code above this line
console.log(tea4TeamFCC);
```

31
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/refactor-global-variables-out-of-functions.english.md
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@ -15,7 +15,10 @@ Adding one to a number is not very exciting, but we can apply these principles w
## Instructions
<section id='instructions'>
Rewrite the code so the global array <code>bookList</code> is not changed inside either function. The <code>add</code> function should add the given <code>bookName</code> to the end of an array. The <code>remove</code> function should remove the given <code>bookName</code> from an array. Both functions should return an array, and any new parameters should be added before the <code>bookName</code> parameter.
Rewrite the code so the global array <code>bookList</code> is not changed inside either function. The <code>add</code> function should add the given <code>bookName</code> to the end of the array passed to it and return a new array (list). The <code>remove</code> function should remove the given <code>bookName</code> from the array passed to it.
<strong>Note:</strong> Both functions should return an array, and any new parameters should be added before the <code>bookName</code> parameter.
</section>
## Tests
@ -45,22 +48,16 @@ tests:
// 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 bookName
// Add your code below this line
// Change code below this line
function add (bookName) {
bookList.push(bookName);
return bookList;
// Add your code above this line
// Change 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
// Change code below this line
function remove (bookName) {
var book_index = bookList.indexOf(bookName);
if (book_index >= 0) {
@ -68,7 +65,7 @@ function remove (bookName) {
bookList.splice(book_index, 1);
return bookList;
// Add your code above this line
// Change code above this line
}
}
@ -89,22 +86,13 @@ console.log(bookList);
<section id='solution'>
```js
// the global variable
// 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);
@ -112,7 +100,6 @@ function remove (bookList, bookName) {
bookListCopy.splice(bookNameIndex, 1);
}
return bookListCopy;
// Add your code above this line
}
var newBookList = add(bookList, 'A Brief History of Time');

32
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/understand-functional-programming-terminology.english.md
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@ -46,24 +46,17 @@ tests:
<div id='js-seed'>
```js
/**
* A long process to prepare green tea.
* @return {string} A cup of green tea.
**/
// Function that returns a string representing a cup of green tea
const prepareGreenTea = () => 'greenTea';
/**
* A long process to prepare black tea.
* @return {string} A cup of black tea.
**/
// Function that returns a string representing a cup of black tea
const prepareBlackTea = () => 'blackTea';
/**
* Get given number of cups of tea.
* @param {function():string} prepareTea The type of tea preparing function.
* @param {number} numOfCups Number of required cups of tea.
* @return {Array<string>} Given amount of tea cups.
**/
/*
Given a function (representing the tea type) and number of cups needed, the
following function returns an array of strings (each representing a cup of
a specific type of tea).
*/
const getTea = (prepareTea, numOfCups) => {
const teaCups = [];
@ -71,16 +64,13 @@ const getTea = (prepareTea, numOfCups) => {
const teaCup = prepareTea();
teaCups.push(teaCup);
}
return teaCups;
};
// Add your code below this line
const tea4GreenTeamFCC = null; // :(
const tea4BlackTeamFCC = null; // :(
// Add your code above this line
// Only change code below this line
const tea4GreenTeamFCC = null;
const tea4BlackTeamFCC = null;
// Only change code above this line
console.log(
tea4GreenTeamFCC,

34
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/understand-the-hazards-of-using-imperative-code.english.md
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@ -47,7 +47,7 @@ tests:
```js
// tabs is an array of titles of each site open within the window
var Window = function(tabs) {
this.tabs = tabs; // we keep a record of the array inside the object
this.tabs = tabs; // We keep a record of the array inside the object
};
// When you join two windows into one window
@ -58,7 +58,7 @@ Window.prototype.join = function (otherWindow) {
// When you open a new tab at the end
Window.prototype.tabOpen = function (tab) {
this.tabs.push('new tab'); // let's open a new tab for now
this.tabs.push('new tab'); // Let's open a new tab for now
return this;
};
@ -67,10 +67,10 @@ Window.prototype.tabClose = function (index) {
// Only change code below this line
var tabsBeforeIndex = this.tabs.splice(0, index); // get the tabs before the tab
var tabsAfterIndex = this.tabs.splice(index + 1); // get the tabs after the tab
var tabsBeforeIndex = this.tabs.splice(0, index); // Get the tabs before the tab
var tabsAfterIndex = this.tabs.splice(index + 1); // Get the tabs after the tab
this.tabs = tabsBeforeIndex.concat(tabsAfterIndex); // join them together
this.tabs = tabsBeforeIndex.concat(tabsAfterIndex); // Join them together
// Only change code above this line
@ -80,13 +80,13 @@ Window.prototype.tabClose = function (index) {
// Let's create three browser windows
var workWindow = new Window(['GMail', 'Inbox', 'Work mail', 'Docs', 'freeCodeCamp']); // Your mailbox, drive, and other work sites
var socialWindow = new Window(['FB', 'Gitter', 'Reddit', 'Twitter', 'Medium']); // Social sites
var videoWindow = new Window(['Netflix', 'YouTube', 'Vimeo', 'Vine']); // Entertainment sites
var videoWindow = new Window(['Netflix', 'YouTube', 'Vimeo', 'Vine']); // Entertainment sites
// Now perform the tab opening, closing, and other operations
var finalTabs = socialWindow
.tabOpen() // Open a new tab for cat memes
.join(videoWindow.tabClose(2)) // Close third tab in video window, and join
.join(workWindow.tabClose(1).tabOpen());
.tabOpen() // Open a new tab for cat memes
.join(videoWindow.tabClose(2)) // Close third tab in video window, and join
.join(workWindow.tabClose(1).tabOpen());
console.log(finalTabs.tabs);
```
@ -102,7 +102,7 @@ console.log(finalTabs.tabs);
```js
// tabs is an array of titles of each site open within the window
var Window = function(tabs) {
this.tabs = tabs; // we keep a record of the array inside the object
this.tabs = tabs; // We keep a record of the array inside the object
};
// When you join two windows into one window
@ -113,16 +113,16 @@ Window.prototype.join = function (otherWindow) {
// When you open a new tab at the end
Window.prototype.tabOpen = function (tab) {
this.tabs.push('new tab'); // let's open a new tab for now
this.tabs.push('new tab'); // Let's open a new tab for now
return this;
};
// When you close a tab
Window.prototype.tabClose = function (index) {
var tabsBeforeIndex = this.tabs.slice(0, index); // get the tabs before the tab
var tabsAfterIndex = this.tabs.slice(index + 1); // get the tabs after the tab
var tabsBeforeIndex = this.tabs.slice(0, index); // Get the tabs before the tab
var tabsAfterIndex = this.tabs.slice(index + 1); // Get the tabs after the tab
this.tabs = tabsBeforeIndex.concat(tabsAfterIndex); // join them together
this.tabs = tabsBeforeIndex.concat(tabsAfterIndex); // Join them together
return this;
};
@ -133,9 +133,9 @@ var videoWindow = new Window(['Netflix', 'YouTube', 'Vimeo', 'Vine']); // Enter
// Now perform the tab opening, closing, and other operations
var finalTabs = socialWindow
.tabOpen() // Open a new tab for cat memes
.join(videoWindow.tabClose(2)) // Close third tab in video window, and join
.join(workWindow.tabClose(1).tabOpen());
.tabOpen() // Open a new tab for cat memes
.join(videoWindow.tabClose(2)) // Close third tab in video window, and join
.join(workWindow.tabClose(1).tabOpen());
```
</section>