获取对象的属性名称 [英] Getting the object's property name

问题描述

我想知道JavaScript中是否有任何方法可以循环遍历这样的对象。

I was wondering if there was any way in JavaScript to loop through an object like so.

for(var i in myObject) {
    // ...
}

但得到名字这样的每个属性。

But get the name of each property like this.

for(var i in myObject) {
    separateObj[myObject[i].name] = myObject[i];
}

我似乎无法在Google上找到类似的内容。他们说用它们传递变量的名称，但这不是我想要实现的选项。

I can't seem to find anything like it on Google. They say to pass the names of the variables with them but this is not an option for what I am trying to achieve.

感谢您提供任何帮助。

推荐答案

使用 Object.keys（）：

var myObject = { a: 'c', b: 'a', c: 'b' };
var keyNames = Object.keys(myObject);
console.log(keyNames); // Outputs ["a","b","c"]

Object.keys（）为您提供属于输入对象的属性名称数组。

Object.keys() gives you an array of property names belonging to the input object.

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