80 lines
1.5 KiB
Markdown
80 lines
1.5 KiB
Markdown
---
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id: 56bbb991ad1ed5201cd392d3
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title: Delete Properties from a JavaScript Object
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challengeType: 1
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videoUrl: ''
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localeTitle: 从JavaScript对象中删除属性
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---
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## Description
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<section id="description">我们还可以删除对象中的属性，如下所示： <code>delete ourDog.bark;</code> </section>
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## Instructions
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<section id="instructions">从<code>myDog</code>删除<code>"tails"</code>属性。您可以使用点或括号表示法。 </section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: 从<code>myDog</code>删除属性<code>"tails"</code> 。
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testString: 'assert(typeof myDog === "object" && myDog.tails === undefined, "Delete the property <code>"tails"</code> from <code>myDog</code>.");'
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- text: 不要修改<code>myDog</code>设置
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testString: 'assert(code.match(/"tails": 1/g).length > 1, "Do not modify the <code>myDog</code> setup");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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// Example
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var ourDog = {
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"name": "Camper",
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"legs": 4,
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"tails": 1,
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"friends": ["everything!"],
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"bark": "bow-wow"
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};
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delete ourDog.bark;
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// Setup
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var myDog = {
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"name": "Happy Coder",
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"legs": 4,
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"tails": 1,
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"friends": ["freeCodeCamp Campers"],
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"bark": "woof"
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};
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// Only change code below this line.
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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console.info('after the test');
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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