我覺得你可以從再次進入聯(lián)系人頁添加時，『如何不產(chǎn)生重復(fù)數(shù)據(jù)』，這一步來入手

看了樓主給別人評論真是哭笑不得，難道你拿到的初始數(shù)據(jù)就是兩個數(shù)組嗎？不是你自己拆的嗎？

var objArr = [{id:'id1',name:'x'},{id:'id2',name:'y'},
{id:'id3',name:'z'},{id:'id1',name:'x'}];
var myMap = new Map();
objArr.forEach((item)=>{
    myMap.set(item.id,item.name);
})
var arr1 = [...myMap.keys()];
var arr2 = [...myMap.values()];

//Map去重
var map = new Map()
arr1.forEach(function(value,key){
    map.set(value, arr2[key]);
})
arr1 = Array.from(map.keys())
arr2 = Array.from(map.values())

其實這個結(jié)構(gòu)有問題，你應(yīng)該有個arr3放object，結(jié)構(gòu)是

var arr3 = [];
var obj = {
    id:""
    name:""
}
var objmap = new Map();
objmap.set(id,obj);

var obj = {};
arr1.forEach(function(value,key)
{
    if(obj[value] == undefined)
    {
        obj[value] = arr2[key];
    }
});