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ES6 keys方法获取对象键值
ES6新增了Object.keys()方法,可用于获取对象所有属性的键名。通过实际例子可以清楚地展示该方法的具体用法和效果。 1、 在JavaScript中创建对象a,包含name和age两个属性。 2、 使用for...in循环遍历对象,逐一获取其属性的键名。 3、 保存代码后运行,输出结果为 ...
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