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String.prototype.parseUrl = function() {
    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('/')
    };
}

var myURL = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'
  pu = myURL.parseUrl();

pu.file; // = 'index.html' 
pu.hash; // = 'top' 
pu.host; // = 'abc.com' 
pu.query; // = '?id=255&m=hello' 
pu.params; // = Object = { id: 255, m: hello } 
pu.path; // = '/dir/index.html' 
pu.segments; // = Array = ['dir', 'index.html'] 
pu.port; // = '8080' 
pu.protocol; // = 'http' 
pu.source; // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'