1：匹配字符串跟数组中存在相同值，并取出数组中的对应元素
var strA = "1,2,3,4,5";var strB = [{ ???"id":"2", ???"name":"小王"},{ ???"id":"5", ???"name":"小李"},{ ???"id":"8", ???"name":"小孙"},{ ???"id":"11", ???"name":"小赵"},{ ???"id":"22", ???"name":"小钱"},]var obj={};for(var i in strB){ ???obj[strB[i].id] = strB[i];}var strArr = strA.split(",");console.log(strArr instanceof Array);var newArr = [];for(var item in strArr){ ???if(obj[item]){ ???????newArr.push(obj[item]) ???}}JS练习题
原文地址：https://www.cnblogs.com/QianBoy/p/8570176.html