关于数组的合并

Question

       var a1=[
            {name:"a",value:11},
            {name:"b",value:22},
            {name:"c",value:33},
            {name:"d",value:44},
        ]
        var a2=[
            {name:"a",value:111},
            {name:"b",value:222},
            {name:"c",value:333},
            {name:"d",value:444},
        ]
        var b = [
            {name:"a",value:11},
            {name:"b",value:22},
            {name:"c",value:333},
            {name:"d",value:44},
        ]

我想实现把两个数组a1和a2进行合并，存放到数组b里面。可以进行合并么。师傅说，要有一个映射对照，有一个对照关系，才能合并。因为我是前端，对数据库的主键什么的不是很了解。

Answer 1

Object.assgin 可以解决问题，问题是你想保留哪一个里面的值