jQuery: How to get parameters of a url?

New to jQuery and I'm having trouble getting the parameters of a url that my server generates. I have a url like this:

<span class="popuptest"><a href="www.example.com/test?param1=1&param2=2">find param</a></span>

my jquery function looks like so:

$(function() {
  $('.popuptest a').live('click', function(event) {
  $.extend({
    getUrlVars: function(){
      var vars = [], hash;
      var hashes = this.href.slice(this.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;
  });
});

clicking on the link should show me "2", however I get nothing... any help for a jQuery noob? thanks in advance!

I found this on a blog: http://jquery-howto.blogspot.com/2009/09/get-url-parameters-values-with-jquery.html

标签： jquery parameters get href param

8条回答

干净又极端

2楼-- · 2019-01-13 22:12

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:

$.getUrlVars in line - var second = $.getUrlVars()["param2"];
this.href is replaced to $('.popuptest a').attr("href")

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戒情不戒烟

3楼-- · 2019-01-13 22:14

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

function getURLParameters(url){

    var result = {};
    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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趁早两清

4楼-- · 2019-01-13 22:20

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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看我几分像从前

5楼-- · 2019-01-13 22:22

function getURLParameter(name) {
    return decodeURI(
        (RegExp(name + '=' + '(.+?)(&|$)').exec(location.search)||[,null])[1]
    );
}

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别忘想泡老子

6楼-- · 2019-01-13 22:27

from here

$.urlParam = function(name){
    var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
    return results[1] || 0;
}

// example.com?param1=name&param2=&id=6
$.urlParam('param1'); // name
$.urlParam('id');        // 6
$.urlParam('param2');   // null

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兄弟一词,经得起流年.

7楼-- · 2019-01-13 22:34

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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jQuery: How to get parameters of a url?

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