2018-10-10 18:03:03 -04:00
|
|
|
---
|
|
|
|
title: Deepcopy
|
|
|
|
id: 596a8888ab7c01048de257d5
|
|
|
|
challengeType: 5
|
|
|
|
videoUrl: ''
|
|
|
|
localeTitle: deepcopy的
|
|
|
|
---
|
|
|
|
|
|
|
|
## Description
|
|
|
|
<section id="description">任务: <p>编写一个返回给定对象的深层副本的函数。 </p><p>副本不得与给定的对象相同。 </p><p>此任务不会测试: </p>具有属性属性的对象Date对象或具有Date对象属性的对象RegEx或具有RegEx对象属性的对象原型复制</section>
|
|
|
|
|
|
|
|
## Instructions
|
|
|
|
<section id="instructions">
|
|
|
|
</section>
|
|
|
|
|
|
|
|
## Tests
|
|
|
|
<section id='tests'>
|
|
|
|
|
|
|
|
```yml
|
|
|
|
tests:
|
|
|
|
- text: <code>deepcopy</code>应该是一个功能。
|
2020-02-18 01:40:55 +09:00
|
|
|
testString: assert(typeof deepcopy === 'function');
|
|
|
|
- text: '<code>deepcopy({test: "test"})</code>应返回一个对象。'
|
|
|
|
testString: 'assert(typeof deepcopy(obj1) === ''object'');'
|
2018-10-10 18:03:03 -04:00
|
|
|
- text: 不应该返回提供的相同对象。
|
2020-02-18 01:40:55 +09:00
|
|
|
testString: assert(deepcopy(obj2) != obj2);
|
2018-10-10 18:03:03 -04:00
|
|
|
- text: 传递包含数组的对象时,应返回该对象的深层副本。
|
2020-02-18 01:40:55 +09:00
|
|
|
testString: assert.deepEqual(deepcopy(obj2), obj2);
|
2018-10-10 18:03:03 -04:00
|
|
|
- text: 传递包含另一个对象的对象时,应返回该对象的深层副本。
|
2020-02-18 01:40:55 +09:00
|
|
|
testString: assert.deepEqual(deepcopy(obj3), obj3);
|
2018-10-10 18:03:03 -04:00
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
</section>
|
|
|
|
|
|
|
|
## Challenge Seed
|
|
|
|
<section id='challengeSeed'>
|
|
|
|
|
|
|
|
<div id='js-seed'>
|
|
|
|
|
|
|
|
```js
|
|
|
|
function deepcopy (obj) {
|
|
|
|
// Good luck!
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
### After Test
|
|
|
|
<div id='js-teardown'>
|
|
|
|
|
|
|
|
```js
|
|
|
|
console.info('after the test');
|
|
|
|
```
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
|
|
|
|
## Solution
|
|
|
|
<section id='solution'>
|
|
|
|
|
|
|
|
```js
|
|
|
|
// solution required
|
|
|
|
```
|
|
|
|
</section>
|