91JS原生：node.js对URL的解析规则

用node.js搭建的服务器环境，其内置模块URL可以把浏览器传过来的URL进行解析，并根据解析结果做出相应的响应。1、引入node内置模块url,用url模块的parse方法来解析winUrl```javascriptvar url = require(‘url‘);var winUrl = url.parse(‘http://www.zhu.cn:80/ccc/index.html?name=zxt&age=26#33‘, true);console.log(winUrl);   winUrl{   protocol: ‘http:‘,   slashes: true,   auth: null,   host: ‘www.zhu.cn:80‘,   port: ‘80‘,   hostname: ‘www.zhu.cn‘,   hash: ‘#33‘,   search: ‘?name=zxt&age=26‘,   query: { name: ‘zxt‘, age: ‘26‘ },当第二行的true不存在时query: ‘name=zxt&age=26‘,   pathname: ‘/ccc/index.html‘,   path: ‘/ccc/index.html?name=zxt&age=26‘,   href: ‘http://www.zhu.cn:80/index.html?name=zxt&age=26#33‘ }```

4、封装解析方法（解析URL中的问号参数值以及HASH值） ```javascript:runfunction queryURLParameter(url) {    var obj = {};    var reg = /([^?=&#]+)=([^?=&#]+)/g;    url.replace(reg, function () {        obj[arguments[1]] = arguments[2];    });    reg = /#([^?=&#]+)/;    if (reg.test(url)) {        obj[‘HASH‘] = reg.exec(url)[1];    }    return obj;}var str1="https://www.baidu.com/newspage/data/landingsuper?AAA=1111&BBB=222&CCC=333#1234";var abc1=queryURLParameter(str1);console.log("第1次输出:",abc1);

function hashA(url){    var reg=/#([^#&=?]+)/;    if(reg.test(url)){        return reg.exec(url)[1];    }}var str2="https://www.baidu.com/newspage/data/landingsuper?AAA=1111&BBB=222&CCC=333#1234"var abc2=hashA(str2);console.log("第2次输出:"+abc2);

var ary=["零","一","二","三","四","五","六","七","八","九"];var str3="今年是2017年";var abc3=str3.replace(/\d/g,function () {    return ary[arguments[0]]});console.log("第3次输出:"+abc3);

/*正则匹配输出 我是[你的朋友]钱成*/var str4 = ‘我是<img src="haha.png" alt="你的朋友"/>钱成‘;var reg=/(.+)<(.+)t="(.+)"\/>(.+)/;var AAA=reg.exec(str4);var abc4=AAA[1]+"["+AAA[3]+"]"+AAA[4];console.log("第4次输出:"+abc4);```

原文地址：https://www.cnblogs.com/gushixianqiancheng/p/10967160.html