js数组中相同name合并value值相加

1、代码如下

let arr = [{name:"男", value:201},{name:"女", value:766},{name:"未说明", value:122},{name:"男", value:122}]

let obj={}
let newArr =[]
arr.map(item=>{
	if(obj[item.name]){
		newArr.map(node=>{
			if(item.name==node.name){
				node.value += item.value
			}
		})
	}else{
		obj[item.name]=1
		newArr.push(item)
	}
})
console.log(newArr)

2、结果输出

(3) [{…}, {…}, {…}]
0: {name: "男", value: 323}
1: {name: "女", value: 766}
2: {name: "未说明", value: 122}
length: 3