js版parseUrl函数解析url获取网址url参数

PHP有parseUrl可以直接解析网址进行获取域名

js的可以用下面的代码也进行此操作！！！

function parseURL(url) { 
    var a = document.createElement('a'); 
    a.href = url; 
    return { 
        source: url, 
        protocol: a.protocol.replace(':',''), 
        host: a.hostname, 
        port: a.port, 
        query: a.search, 
        params: (function(){ 
            var ret = {}, 
            seg = a.search.replace(/^\?/,'').split('&'), 
            len = seg.length, i = 0, s; 
            for (;i<len;i++) { 
                if (!seg[i]) { continue; } 
                s = seg[i].split('='); 
                ret[s[0]] = s[1]; 
            } 
            return ret; 
        })(), 
        file: (a.pathname.match(/\/([^\/?#]+)$/i) || [,''])[1], 
        hash: a.hash.replace('#',''), 
        path: a.pathname.replace(/^([^\/])/,'/$1'), 
        relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [,''])[1], 
        segments: a.pathname.replace(/^\//,'').split('/') 
    }; 
}