Append Query String to URL with Jquery

Question

What am I doing wrong?

1. Only on pages with the URL location of "/MyWebsite/Example.aspx" append "?template=PW"
2. But only to links that contain "/HelloWorld/default.aspx"

There is no ID or classes associated to this link, so I have to look for the URL.

This is my code, but the links are not updating.. I know I'm close!

$(document).ready(function(){
 if (document.location.href.indexOf('/MyWebsite/Example.aspx') > 0) 
 {
 $('a[href*="/HelloWorld/default.aspx"]').append("href",$("?template=PW"))
 }
});

Answer 1

$(document).ready(function(){
 if (document.location.href.indexOf('/MyWebsite/Example.aspx') > 0) 
 {
 var $el = $('a[href*="/HelloWorld/default.aspx"]');
 $el.attr("href", $el.attr("href")+ "?template=PW");
 }
});

• shaz3e: I'd like to accomplish the same things but with all href how can I do that? please mention me @Shaz3e on twitter with your reply.
• Okan Kocyigit: @shaz3e, use $.each method to loop all anchors, $("a").each(function() { $(this).attr("href", $(this).attr("href")+ "?template=PW"); });
• shaz3e: I have already achieved this by using the following code. <script type="text/javascript"> var querystring = 'MyString'; // Replace this $('a').each(function(){ var href = $(this).attr('href'); href += (href.match(/\?/) ? '&' : '#') + querystring; $(this).attr('href', href); }); </script>

Answer 2

This would definitely solve your problem as it did mine.

<script type="text/javascript">
 var querystring = 'MyString'; // Replace this
 $('a').each(function(){
 var href = $(this).attr('href');
 href += (href.match(/\?/) ? '&' : '?') + querystring;
 $(this).attr('href', href);
 });
</script>

Answer 3

Use $.attr() to edit an attribute.

$.append() is used to insert an html child node inside your element.

$(document).ready(function(){
 if (document.location.href.indexOf('/MyWebsite/Example.aspx') > 0) 
 {
 var href = '/HelloWorld/default.aspx';
 $('a[href*="' + href + '"]').attr("href", href + "?template=PW")
 }
});

Answer 4

Have you consider using PURL? With PURL I was able to do this:

var url = "http://localhost/some/url?item1=one&item2=two";
if ($.url(url).attr('query')) {
 url = url + '&newItem=new';
}
else {
 url = url + '?newItem=new';
}

Answer 5

Replace

$('a[href*="/HelloWorld/default.aspx"]').append("href",$("?template=PW"))

With

$.each(
 $('a[href*="/HelloWorld/default.aspx"]'),
 function(index, value) {
 $(value).attr('href', $(value).attr('href') + '?template=PW');
 }
);

That will get you started, but you should also check to make sure there isn't a query string parameter already in the matched URL.

$().append() doesn't alter the value of the href attribute, it is used to insert content at the end of each matched element. The jQuery documentation has examples of how to use $().append().