freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/data-structures/remove-items-from-a-set-in-...

66 lines
1.2 KiB
Markdown

---
id: 587d8254367417b2b2512c71
title: Remove items from a set in ES6
challengeType: 1
forumTopicId: 301713
---
## Description
<section id='description'>
Let's practice removing items from an ES6 Set using the <code>delete</code> method.
First, create an ES6 Set:
<code>var set = new Set([1,2,3]);</code>
Now remove an item from your Set with the <code>delete</code> method.
```js
set.delete(1);
console.log([...set]) // should return [ 2, 3 ]
```
</section>
## Instructions
<section id='instructions'>
Now, create a set with the integers 1, 2, 3, 4, & 5.
Remove the values 2 and 5, and then return the set.
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: Your Set should contain the values 1, 3, & 4
testString: assert((function(){var test = checkSet(); return test.has(1) && test.has(3) && test.has(4) && test.size === 3;})());
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function checkSet(){
var set = null;
return set;
}
```
</div>
</section>
## Solution
<section id='solution'>
```js
function checkSet(){
var set = new Set([1,2,3,4,5]);
set.delete(2);
set.delete(5);
return set;}
```
</section>