56 lines
1.3 KiB
Markdown
56 lines
1.3 KiB
Markdown
---
|
||
id: 587d8254367417b2b2512c71
|
||
title: Remove items from a set in ES6
|
||
challengeType: 1
|
||
videoUrl: ''
|
||
localeTitle: 从ES6中的集中删除项目
|
||
---
|
||
|
||
## Description
|
||
<section id="description">让我们使用<code>delete</code>方法练习从ES6集中<code>delete</code> 。首先，创建一个ES6 Set <code>var set = new Set([1,2,3]);</code>现在使用<code>delete</code>方法从Set中删除一个项目。 <blockquote> set.delete（1）; <br> console.log（[... set]）//应该返回[2,3] <blockquote></blockquote></blockquote></section>
|
||
|
||
## Instructions
|
||
<section id="instructions">现在，创建一个整数为1,2,3,4和5的集合。删除值2和5，然后返回集合。 </section>
|
||
|
||
## Tests
|
||
<section id='tests'>
|
||
|
||
```yml
|
||
tests:
|
||
- text: '您的集应包含值1,3和4'
|
||
testString: 'assert(function(){var test = checkSet(); return test.has(1) && test.has(3) && test.has(4) && test.size === 3}, "Your Set should contain the values 1, 3, & 4");'
|
||
|
||
```
|
||
|
||
</section>
|
||
|
||
## Challenge Seed
|
||
<section id='challengeSeed'>
|
||
|
||
<div id='js-seed'>
|
||
|
||
```js
|
||
function checkSet(){
|
||
var set = //Create a set with values 1, 2, 3, 4, & 5
|
||
//Remove the value 2
|
||
//Remove the value 5
|
||
//Return the set
|
||
return set;
|
||
}
|
||
|
||
```
|
||
|
||
</div>
|
||
|
||
|
||
|
||
</section>
|
||
|
||
## Solution
|
||
<section id='solution'>
|
||
|
||
```js
|
||
// solution required
|
||
```
|
||
</section>
|