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# \_.first -> head（取数组第一个元素）

**语法：**

```javascript
_.head(array)
```

**源代码链接：**[source](https://github.com/lodash/lodash/blob/4.17.10/lodash.js#L7423)

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

**描述：**

获取数组的第一个元素。

**开始版本：**0.1.0

## Aliases

```javascript
_.first
```

**参数：**

* `array (Array)`: 需要查询的数组。

**返回值：**

* `(*)`: 返回数组的第一个元素。

**例子：**

```javascript
_.head([1, 2, 3]);
// => 1

_.head([]);
// => undefined
```