JS提取URL中的参数

<!DOCTYPE html>
<html>
   <head>
       <meta charset="UTF-8">
       <title></title>
   </head>
   <body>
       <script type="text/javascript">
           function urlArgs() {
                var args = {};
                var query = location.search.substring(1); // 过滤掉'?'
                var pairs = query.split("&");
                for(var i = 0; i < pairs.length; i++) {
                    var pos = pairs[i].indexOf('=');
                    if (pos == -1) continue;
                    var name = pairs[i].substring(0,pos);
                    var value = pairs[i].substring(pos+1);
                    value = decodeURIComponent(value);
                    args[name] = value;
                }
                return args;
           }
           console.log(JSON.stringify(urlArgs()))
       </script>
   </body>
</html>