Help with Jquery function

Question

Ok, Here is my problem:

I have this function in a third party javascript library defined as RedirectLink(a,b,c,d,e) where a,b,c,d,e are strings.

I also have a link in my webSite which is again autogenerated (And I can't change it)

<a href="javascript: RedirectLink("1", "2", "3" ,"4" ,"5")" id="mylink" >

What I need to do is, read this anchor's (mylink) href and I need to call RedirectLink function such as javascript: RedirectLink("1", "2", "3" + param, "4" , "5"). where param will come from query string.

The first part is easy, reading the href but how to alter the third parameter ?

• Šime Vidas: This query value is the query string of the current URL?
• Madhur Ahuja: yes, basically I need to append something to third argument coming from query string. Data types can be ignored.
• James South: If you are using jQuery then why are you using javascript: RedirectLink("1", "2", "3" + param, "4" , "5") in your html? jQuery has specific event handlers that allow you to properly separate your concerns. What you have written is very poor practice.
• Madhur Ahuja: Can you elaborate more? I am just constructing the link which I will assign to anchor. How else can it be done ?

Answer 1

Mhm... You can make an hack like this:

via javascript you can change href from javascript: RedirectLink(1,2,3,4,5) to javascript: MyRedirectLink(1,2,3,4,5), then define MyRedirectLink:

var param = 'xxx';
function MyRedirectLink(a, b, c, d, e) {
 RedirectLink(a, b, c + param, d, e)
}

Not elegant but it should work (if param can be computed outside your function).

Answer 2

This would work:

$(function() {
 var $mylink = $('#mylink');
 var href = $mylink.attr('href');
 // getting the array of arguments
 var args = href.substr( href.indexOf('(') + 1 );
 args = args.slice(0, args.length - 1);
 args = args.split(',');
 // getting the string value for each array item
 for (var i = 0; i < args.length; i++) {
 args[i] = $.trim(args[i]);
 args[i] = args[i].slice(1, args[i].length - 1);
 }
 // augmenting the third argument
 args[2] += window.location.href;
 $mylink.attr('href', '#').click(function() {
 RedirectLink(args[0], args[1], args[2], args[3], args[4]);
 return false;
 });
});

• Madhur Ahuja: Thanks, This looks like a lot of parsing. Let me try this too.