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>
78 lines
1.4 KiB
Markdown
78 lines
1.4 KiB
Markdown
---
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id: 56bbb991ad1ed5201cd392d1
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title: 更新对象属性
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/c9yEJT4'
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forumTopicId: 18336
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dashedName: updating-object-properties
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---
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# --description--
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当你创建了一个对象后，你可以用点操作符或中括号操作符来更新对象的属性。
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举个例子，让我们看看`ourDog`:
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```js
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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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};
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```
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让我们更改它的名称为 "Happy Camper"，这有两种方式来更新对象的`name`属性： `ourDog.name = "Happy Camper";` 或 `ourDog["name"] = "Happy Camper";` 现在，`ourDog.name`的值就不再是 "Camper"，而是 "Happy Camper"。
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# --instructions--
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更新`myDog`对象的`name`属性，让它的名字从 "Coder" 变成 "Happy Coder"。
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# --hints--
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更新`myDog`的`"name"`属性, 使其等于 "Happy Coder"。
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```js
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assert(/happy coder/gi.test(myDog.name));
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```
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不要修改`myDog`的定义。
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```js
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assert(/"name": "Coder"/.test(code));
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```
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# --seed--
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## --after-user-code--
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```js
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(function(z){return z;})(myDog);
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```
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## --seed-contents--
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```js
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// Setup
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var myDog = {
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"name": "Coder",
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"legs": 4,
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"tails": 1,
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"friends": ["freeCodeCamp Campers"]
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};
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// Only change code below this line
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```
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# --solutions--
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```js
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var myDog = {
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"name": "Coder",
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"legs": 4,
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"tails": 1,
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"friends": ["freeCodeCamp Campers"]
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};
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myDog.name = "Happy Coder";
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```
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