# \_.set

**语法：**

```javascript
_.set(object, path, value)
```

**源代码链接：**[source](https://github.com/lodash/lodash/blob/4.17.10/lodash.js#L13672)

**npm包链接：**[npm package](https://www.npmjs.com/package/lodash.set)

**描述：**

设置`object`对象中对应`path`属性路径上的值，如果`path`不存在，则创建。 缺少的索引属性会创建为数组，而缺少的属性会创建为对象。 使用[`_.setWith`](https://lodash.com/docs/4.17.10#setWith)定制`path`创建。

> **Note:** 这个方法会改变`object`。

**开始版本：**3.7.0

**参数：**

* `object (Object)`: 要修改的对象。
* `path (Array|string)`: 要设置的对象路径。
* `value (*)`: 要设置的值。

**返回值：**

* `(Object)`: 返回 object。

**例子：**

```javascript
var object = { 'a': [{ 'b': { 'c': 3 } }] };

_.set(object, 'a[0].b.c', 4);
console.log(object.a[0].b.c);
// => 4

_.set(object, ['x', '0', 'y', 'z'], 5);
console.log(object.x[0].y.z);
// => 5
```


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