size
最后更新于:2022-04-02 00:00:28
## size
+ [link](./size "Link to this entry.")
+ [source](https://github.com/lodash/lodash/blob/4.5.0正式版/lodash.src.js#L8183 "View in source.")
+ [npm](https://www.npmjs.com/package/lodash.size "See the npm package.")
```
_.size(collection)
```
返回集合的长度或对象中可枚举属性的个数。
### 参数
1. collection (Array|Object)
待处理的集合
### 返回值 (number)
返回集合的大小
### 示例
```
_.size([1, 2, 3]);
// => 3
_.size({ 'a': 1, 'b': 2 });
// => 2
_.size('pebbles');
// => 7
```
';