ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
85 lines
1.2 KiB
Markdown
85 lines
1.2 KiB
Markdown
---
|
|
id: 596a8888ab7c01048de257d5
|
|
title: deepcopy的
|
|
challengeType: 5
|
|
videoUrl: ''
|
|
dashedName: deepcopy
|
|
---
|
|
|
|
# --description--
|
|
|
|
任务：
|
|
|
|
编写一个返回给定对象的深层副本的函数。
|
|
|
|
副本不得与给定的对象相同。
|
|
|
|
此任务不会测试：
|
|
|
|
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
|
|
|
|
# --hints--
|
|
|
|
`deepcopy`应该是一个功能。
|
|
|
|
```js
|
|
assert(typeof deepcopy === 'function');
|
|
```
|
|
|
|
`deepcopy({test: "test"})`应返回一个对象。
|
|
|
|
```js
|
|
assert(typeof deepcopy(obj1) === 'object');
|
|
```
|
|
|
|
不应该返回提供的相同对象。
|
|
|
|
```js
|
|
assert(deepcopy(obj2) != obj2);
|
|
```
|
|
|
|
传递包含数组的对象时，应返回该对象的深层副本。
|
|
|
|
```js
|
|
assert.deepEqual(deepcopy(obj2), obj2);
|
|
```
|
|
|
|
传递包含另一个对象的对象时，应返回该对象的深层副本。
|
|
|
|
```js
|
|
assert.deepEqual(deepcopy(obj3), obj3);
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --after-user-code--
|
|
|
|
```js
|
|
const obj1 = { test: 'test' };
|
|
const obj2 = {
|
|
t: 'test',
|
|
a: ['an', 'array']
|
|
};
|
|
const obj3 = {
|
|
t: 'try',
|
|
o: obj2
|
|
};
|
|
```
|
|
|
|
## --seed-contents--
|
|
|
|
```js
|
|
function deepcopy(obj) {
|
|
|
|
return true;
|
|
}
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```js
|
|
function deepcopy(obj) {
|
|
return JSON.parse(JSON.stringify(obj));
|
|
}
|
|
```
|