> For the complete documentation index, see [llms.txt](https://lodash.shujuwajue.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lodash.shujuwajue.com/function/spread.md).

# \_.spread

**语法：**

```javascript
_.spread(func, [start=0])
```

**源代码链接：**[source](https://github.com/lodash/lodash/blob/4.17.10/lodash.js#L10836)

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

**描述：**

创建一个函数，调用`func`时，`this`绑定到创建的新函数，把参数作为数组传入，类似于[`Function#apply`](http://www.ecma-international.org/ecma-262/6.0/#sec-function.prototype.apply).

> **Note:**这个方法基于[spread operator](https://mdn.io/spread_operator).

**开始版本：**3.2.0

**参数：**

* `func (Function)`: 要应用传播参数的函数。
* `[start=0] (number)`: spread 参数的开始位置.

**返回值：**

* `(Function)`: 返回新的函数。

**例子：**

```javascript
var say = _.spread(function(who, what) {
  return who + ' says ' + what;
});

say(['fred', 'hello']);
// => 'fred says hello'

var numbers = Promise.all([
  Promise.resolve(40),
  Promise.resolve(36)
]);

numbers.then(_.spread(function(x, y) {
  return x + y;
}));
// => a Promise of 76
```


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