截取url的参数并转为对象（加寻找大牛解释）

urlLink = 'http://127.0.0.1/a/b/loginmobile? isShowTop=false&userId=san.zhang&Name= 张三 &DepName=%3d%e6%80%bb%e9%83%a8%26DepCode%3d100137&employeenumber=9sgDeL21u8Yo%2f X%2fi67uGFw%3d%3d&Identity_Token=ObI1IJNm2fhzBevPMFghUuQMhLRoN3TFBhmd3kpP%2fWivul 3eBw9eKEFDpExUkm8NULLrNQ%2fw2kFed8I%2bUAp83v1nYou3%2bQpoRflRd6yVF0KiRfSx%2frgQT g%3d%3'

var params = urlLink.split("?")[1].split("&");

console.log(params)

//结果：[' isShowTop=false', 'userId=san.zhang', 'Name= 张三 ', 'DepName=%3d%e6%80%bb%e9%83%a8%26DepCode%3d100137', 'employeenumber=9sgDeL21u8Yo%2f X%2fi67uGFw%3d%3d', 'Identity_Token=ObI1IJNm2fhzBevPMFghUuQMhLRoN3TFBhm…bUAp83v1nYou3%2bQpoRflRd6yVF0KiRfSx%2frgQT g%3d%3']

  var urlInkSubstr = {}

  params.map(item => urlInkSubstr[item.split("=")[0]] = item.split("=")[1])

  console.log(JSON.stringify(urlInkSubstr))

//结果：{" isShowTop":"false","userId":"san.zhang","Name":" 张三 ","DepName":"%3d%e6%80%bb%e9%83%a8%26DepCode%3d100137","employeenumber":"9sgDeL21u8Yo%2f X%2fi67uGFw%3d%3d","Identity_Token":"ObI1IJNm2fhzBevPMFghUuQMhLRoN3TFBhmd3kpP%2fWivul 3eBw9eKEFDpExUkm8NULLrNQ%2fw2kFed8I%2bUAp83v1nYou3%2bQpoRflRd6yVF0KiRfSx%2frgQT g%3d%3"}

params.map(item => urlInkSubstr[item.split("=")[0]] = item.split("=")[1])

求大牛解释：这里的item是是params的值吗？是字符串吗？urlInkSubstr[]定义的是对象{}为什么以数组来用？