## head first + [link](./head "Link to this entry.") + [source](https://github.com/lodash/lodash/blob/4.5.0正式版/lodash.src.js#L6024 "View in source.") + [npm](https://www.npmjs.com/package/lodash.head "See the npm package.") ``` _.head(array) ``` 获得数组的首个元素 ### 参数 1. array (Array) 要检索的数组 ### 返回值 (\*) 返回数组中的首个元素 ### 示例 ``` _.head([1, 2, 3]); // => 1 _.head([]); // => undefined ```