数组对象通过某个属性对数据进行分组

肉清

于 2022-10-03 15:59:04 发布

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分类专栏：前端文章标签： javascript

本文链接：https://blog.youkuaiyun.com/weixin_39031037/article/details/127153049

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function arrayGroup(arr) {
  const m = new Map();
  arr.map(item=>{
    m.set(item.data_group_en, [...(m.get(item.data_group_en) || ''), item])
  })
	return Object.fromEntries(m.entries()) ;
}

let list = [
{name:'test',value:'value1',count:6},
{name:'test1',value:'value2',count:4},
{name:'test1',value:'value3',count:2},
{name:'test',value:'value4',count:0},
]

{
	test:[
		{name:'test',value:'value1',count:6},
		{name:'test',value:'value4',count:0}
	],
	test1:[
		{name:'test1',value:'value2',count:4},
		{name:'test1',value:'value3',count:2}
	]
}