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// Spaces and line breaks are not important. An object definition can span multiple lines:varperson={firstName:"Fatli",lastName:"Lee",age:22,eyeColor:"black"};
JavaScript 对象
JavaScript 中的所有事物都是对象:字符串、数字、数组、日期、函数,等等。
JavaScript 中,对象是数据(变量),拥有属性和方法。对象是拥有属性和方法的数据。(在面向对象的语言中,属性和方法常被称为对象的成员)
例如:这样声明一个 JavaScript 变量时:
实际上已经创建了一个 JavaScript 字符串对象。字符串对象拥有内建的属性
stringObject.length
和内建的方法stringObject.indexOf(searchvalue,fromindex)
。对象属性:
对象方法:
JavaScript 创建对象
创建名为 "person" 的对象,并为其添加了四个属性:
访问对象属性
or
访问对象方法
实例:
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