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2021-10-27 21:47:35 +05:30

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---
id: 56bbb991ad1ed5201cd392d3
title: 刪除對象的屬性
challengeType: 1
videoUrl: 'https://scrimba.com/c/cDqKdTv'
forumTopicId: 17560
dashedName: delete-properties-from-a-javascript-object
---
# --description--
我們同樣可以刪除對象的屬性,例如:
```js
delete ourDog.bark;
```
例如:
```js
const ourDog = {
"name": "Camper",
"legs": 4,
"tails": 1,
"friends": ["everything!"],
"bark": "bow-wow"
};
delete ourDog.bark;
```
在上面代碼的最後一行中,`ourDog` 是這樣的:
```js
{
"name": "Camper",
"legs": 4,
"tails": 1,
"friends": ["everything!"]
}
```
# --instructions--
刪除 `myDog` 對象的 `tails` 屬性。 可以使用點操作符或者中括號操作符。
# --hints--
應該從 `myDog` 中刪除 `tails` 屬性。
```js
assert(typeof myDog === 'object' && myDog.tails === undefined);
```
不要修改 `myDog` 的初始化代碼。
```js
assert(code.match(/"tails": 1/g).length > 0);
```
# --seed--
## --after-user-code--
```js
(function(z){return z;})(myDog);
```
## --seed-contents--
```js
// Setup
const myDog = {
"name": "Happy Coder",
"legs": 4,
"tails": 1,
"friends": ["freeCodeCamp Campers"],
"bark": "woof"
};
// Only change code below this line
```
# --solutions--
```js
const myDog = {
"name": "Happy Coder",
"legs": 4,
"tails": 1,
"friends": ["freeCodeCamp Campers"],
"bark": "woof"
};
delete myDog.tails;
```