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* Copy edits to Basic JavaScript section

* Copy edits to ES6 section

* Update index.md
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Amy Lam
2019-03-29 09:36:58 -07:00
committed by The Coding Aviator
parent 768b618e68
commit 914a7c522d
24 changed files with 39 additions and 39 deletions
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curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/profile-lookup.english.md
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@ -11,8 +11,8 @@ We have an array of objects representing different people in our contacts lists.
A <code>lookUpProfile</code> function that takes <code>name</code> and a property (<code>prop</code>) as arguments has been pre-written for you. A <code>lookUpProfile</code> function that takes <code>name</code> and a property (<code>prop</code>) as arguments has been pre-written for you.
The function should check if <code>name</code> is an actual contact's <code>firstName</code> and the given property (<code>prop</code>) is a property of that contact. The function should check if <code>name</code> is an actual contact's <code>firstName</code> and the given property (<code>prop</code>) is a property of that contact.
If both are true, then return the "value" of that property. If both are true, then return the "value" of that property.
If <code>name</code> does not correspond to any contacts then return <code>"No such contact"</code> If <code>name</code> does not correspond to any contacts then return <code>"No such contact"</code>.
If <code>prop</code> does not correspond to any valid properties of a contact found to match <code>name</code> then return <code>"No such property"</code> If <code>prop</code> does not correspond to any valid properties of a contact found to match <code>name</code> then return <code>"No such property"</code>.
</section> </section>
## Instructions ## Instructions

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curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-the-rest-operator-with-function-parameters.english.md
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@ -8,7 +8,7 @@ challengeType: 1
<section id='description'> <section id='description'>
In order to help us create more flexible functions, ES6 introduces the <dfn>rest operator</dfn> for function parameters. With the rest operator, you can create functions that take a variable number of arguments. These arguments are stored in an array that can be accessed later from inside the function. In order to help us create more flexible functions, ES6 introduces the <dfn>rest operator</dfn> for function parameters. With the rest operator, you can create functions that take a variable number of arguments. These arguments are stored in an array that can be accessed later from inside the function.
Check out this code: Check out this code:
<blockquote>function howMany(...args) {<br>&nbsp;&nbsp;return "You have passed " + args.length + " arguments.";<br>}<br>console.log(howMany(0, 1, 2)); // You have passed 3 arguments<br>console.log(howMany("string", null, [1, 2, 3], { })); // You have passed 4 arguments.</blockquote> <blockquote>function howMany(...args) {<br>&nbsp;&nbsp;return "You have passed " + args.length + " arguments.";<br>}<br>console.log(howMany(0, 1, 2)); // You have passed 3 arguments.<br>console.log(howMany("string", null, [1, 2, 3], { })); // You have passed 4 arguments.</blockquote>
The rest operator eliminates the need to check the <code>args</code> array and allows us to apply <code>map()</code>, <code>filter()</code> and <code>reduce()</code> on the parameters array. The rest operator eliminates the need to check the <code>args</code> array and allows us to apply <code>map()</code>, <code>filter()</code> and <code>reduce()</code> on the parameters array.
</section> </section>