keys
最后更新于：2022-04-02 00:05:19
## keys
+ [link](./keys "Link to this entry.")
+ [source](https://github.com/lodash/lodash/blob/4.5.0正式版/lodash.src.js#L11332 "View in source.")
+ [npm](https://www.npmjs.com/package/lodash.keys "See the npm package.")
```
_.keys(object)
```
创建 `object` 自身可枚举属性名为一个数组。
**注意:** 非对象的值会被强制转换为对象，查看 [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) 了解详情
### 参数
1. object (Object)
要检索的对象
### 返回值 (Array)
返回包含属性名的数组
### 示例
```
function Foo() {
this.a = 1;
this.b = 2;
}
Foo.prototype.c = 3;
_.keys(new Foo);
// => ['a', 'b'] (无法保证遍历的顺序)
_.keys('hi');
// => ['0', '1']
```
';