javascript parseUrl函数(来自国外的获取网址url参数)

在外国一博客看到一个很好的函数，获取网址url等地址参数。非常不错，值得参考与收藏。

<script type="text/javascript">

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('/')
};

}

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

alert(myURL.file); // = 'index.html' 

myURL.hash; // = 'top' 

myURL.host; // = 'abc.com' 

myURL.query; // = '?id=255&m=hello' 

myURL.params; // = Object = { id: 255, m: hello } 

myURL.path; // = '/dir/index.html' 

myURL.segments; // = Array = ['dir', 'index.html'] 

myURL.port; // = '8080' 

myURL.protocol; // = 'http' 

myURL.source; // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'</script>