@example: const arr = [ {type: 1, name: 'a'}, {type: 2, name: 'b'}, {type: 1, name: 'c'}, {type: 2, name: 'd'}, {type: 1, name: 'e'}, {type: 2, name: 'f'}, ] groupBy(arr, 'type') => {1: [{type: 1, name: 'a'}, {type: 1, name: 'c'}, {type: 1, name: 'e'}], 2: [{type: 2, name: 'b'}, {type: 2, name: 'd'}, {type: 2, name: 'f'}]}
@description: 数组的分类，根据某个字段分类，返回一个对象，key为字段值，value为数组 @author: wxingheng @Date: 2022-09-30 11:53:38