var a = [
{id:1,name : "Jack"},
{id:2,name : "Lucy"},
{id:3,name : "Tom"}
]
/*
var b = {id:3,name : "Joy"}
var b = {id:4,name : "May"}
*/
aidbid,name,pusha.
b.
let item = a.find(obj => obj.id === b.id);
if(item) {
item.name = b.name;
} else {
a.push(b)
}about the window.location.href jump page with parameters, the url address parameter value of the page becomes ANONYMOUS, code: let dealerNos = sessionStorage.getItem ( "dealerNo "); get the card number let openIds = sessionStorage.getItem ( "openId...