## mean + [link](./mean "Link to this entry.") + [source](https://github.com/lodash/lodash/blob/4.5.0正式版/lodash.src.js#L13971 "View in source.") + [npm](https://www.npmjs.com/package/lodash.mean "See the npm package.") ``` _.mean(array) ``` 计算 `array` 的平均值。 ### 参数 1. array (Array) 要遍历的数组 ### 返回值 (number) 返回平均值 ### 示例 ``` _.mean([4, 2, 8, 6]); // => 5 ```