var log4js = require('log4js')log4js.configure({    appenders: { cheese: { type: "file", filename: "cheese.log" } },    categories: { default: { appenders: ["cheese"], level: "error" } }});const logger = log4js.getLogger("cheese");logger.level = 'debug'const url = require('url')const urlString = 'https://www.baidu.com:443/ad/index.html?id=8&name=mouse#tag=110'const urlObj = {    protocol: 'https:',    slashes: true,    auth: null,    host: 'www.baidu.com:443',    port: '443',    hostname: 'www.baidu.com',    hash: '#tag=110',    search: '?id=8&name=mouse',    query: 'id=8&name=mouse',    pathname: '/ad/index.html',    path: '/ad/index.html?id=8&name=mouse',    href: 'https://www.baidu.com:443/ad/index.html?id=8&name=mouse#tag=110'}// logger.debug(url.parse(urlString))// logger.debug(url.format(urlObj))// logger.debug(url.resolve('http://www.abc.com/a', '../'))// logger.debug(url.resolve('http://www.abc.com/a', '/b'))// const urlParams = new URLSearchParams(urlString)// logger.debug(urlParams)const urlParams2 = new URLSearchParams(url.parse(urlString).search)logger.debug(urlParams2.get('id'))