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jQuery: How to get parameters of a url?

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离开以前 2020-12-05 07:42

New to jQuery and I\'m having trouble getting the parameters of a url that my server generates. I have a url like this:
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8条回答
  • -上瘾入骨i
    2020-12-05 08:12

    Your jquery could be

    $(function() {  
 $('.popuptest a').live('click', function(event) {
 $.extend({     getUrlVars: function(){
  var vars = [], hash;
  var hashes = $('.popuptest a').attr("href").slice($('.popuptest     a').attr("href").indexOf('?') + 1).split('&');
  for(var i = 0; i < hashes.length; i++)
  {
    hash = hashes[i].split('=');
    vars.push(hash[0]);
    vars[hash[0]] = hash[1];
  }
  return vars;
},
getUrlVar: function(name){
  return $.getUrlVars()[name];
}
  });
  var second = $.getUrlVars()["param2"];
  alert(second);
  return false;
  });
});

    things to note:

    1. $.getUrlVars in line - var second = $.getUrlVars()["param2"];
    2. this.href is replaced to $('.popuptest a').attr("href")
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  • 梦谈多话
    2020-12-05 08:14

    it's so easy, all you have to do is put the variable name that you want it from the URL into this function then it will return you the value of URL variable

    function getParameterByName(name) {
 return decodeURIComponent((new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search)||[,""])[1].replace(/\+/g, '%20'))||null;
}
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  • 再見小時候
    2020-12-05 08:15

    small improvement, parse the url only once, return array or params:

    function getURLParameters(url){

    var result = {};
    var hashIndex = url.indexOf("#");
    if (hashIndex > 0)
       url = url.substr(0, hashIndex);        
    var searchIndex = url.indexOf("?");
    if (searchIndex == -1 ) return result;
    var sPageURL = url.substring(searchIndex +1);
    var sURLVariables = sPageURL.split('&');
    for (var i = 0; i < sURLVariables.length; i++)
    {       
        var sParameterName = sURLVariables[i].split('=');      
        result[sParameterName[0]] = sParameterName[1];
    }
    return result;
}

    http://jsfiddle.net/shakhal/gXM3u/

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  • 太阳男子
    2020-12-05 08:16

    You don't need jQuery for that purpose you can use the pure JavaScript:

    function getParameterByName( name,href )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( href );
  if( results == null )
    return "";
  else
    return decodeURIComponent(results[1].replace(/\+/g, " "));
}

    and you can call the function in this way..getParameterByName(param1,href of your link)

    DEMO

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  • 温柔的废话
    2020-12-05 08:17 
    function getURLParameter(name) {
    return decodeURI(
        (RegExp(name + '=' + '(.+?)(&|$)').exec(location.search)||[,null])[1]
    );
}
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  • 被撕碎了的回忆
    2020-12-05 08:19

    So simple you can use any url and get value in Javascript.And this is Complete set of codes

    <!DOCTYPE html>
<html>
<head>
<script>
var tech = getQueryVariable('filename');
function getQueryVariable(variable)
{
       var query = window.location.search.substring(1);
       var vars = query.split("&");
       for (var i=0;i<vars.length;i++) {
               var pair = vars[i].split("=");
               if(pair[0] == variable){return pair[1];}
       }
       return(false);
}
alert(tech);
</script>
</head>
<body>
<p>Get parameters of a url</p>
</body>
</html>
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