29 lines
578 B
Markdown
29 lines
578 B
Markdown
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---
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title: Manipulate JavaScript Objects
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localeTitle: 操纵JavaScript对象
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---
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有几种方法可以操纵对象属性，点符号和括号表示法。
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使用点表示法向对象添加属性：
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```
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myObject.myProperty = "myValue";
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```
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使用括号表示法向对象添加属性：
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```javascript
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myObject['myProperty'] = "myValue";
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```
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使用括号表示法，我们可以将变量用作属性名称：
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```javascript
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var dynamicProperty = "myProperty";
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myObject[dynamicProperty] = "myValue";
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```
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我们也可以删除它们：
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```
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delete(myObject.myProperty);
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```
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