Extract characters after ?= in link

Question

Can anyone see where I going wrong here, I'm trying to get the last characters after the ?p= in a link and put in a varaible, but the code I'm using returns /.

My code is:

 $("#dvPartial").on('click', '.dvPagerCities a', function (event) {
        alert('click detected');
        var city = ($('input#hdnCountry').val());
        alert(city);
        var link = $('a').attr('href');
        //var getEqualPosition = link.indexOf('?p='); //Get the position of '='
        var getEqualPosition = link.indexOf('='); //Get the position of '='
        var number = link.substring(getEqualPosition + 1); //Split the string and get the number.

My link is

<a href="/Weather/Index/Australia?p=2">»</a>

I think what is happening is its picking up the 1st = .

My theory is this.

1) Detect the click event

2) Get the link that caused the event

3) Extract the value of p,

p can be 1 diget, 2 digets or 3 digets.

Any help would be appreciated, as it seems no sooner do I solve 1 problem then another arises.

Thanks

George

possible duplicate of [How can I get query string values?](http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values) — Álvaro González, Feb 07 '13 at 11:06
It works fine for me. See this example http://jsfiddle.net/Dineshkani/7QHr4/ — Dineshkani, Feb 07 '13 at 11:07
Hi Dineshkani its does work in jsfiddle, or a static link outside the partial update but not on my page when the links is created — CareerChange, Feb 07 '13 at 11:14
@Jai It works in that jsFiddle because you only have a single link, and therefore the incorrect `var link = $('a').attr('href');` line just happens to select the correct link. — Anthony Grist, Feb 07 '13 at 11:22
@AnthonyGrist yes you are right just updated the fiddle and the answer. — Jai, Feb 07 '13 at 11:27

score 1 · Accepted Answer · answered Feb 07 '13 at 11:04

1

Assuming that p is the only parameter in the URL you can simply split by the = sign:

$("#dvPartial").on('click', '.dvPagerCities a', function (event) {
    var city = $('input#hdnCountry').val();
    var number = $(this).attr('href').split('=')[1];
});

answered Feb 07 '13 at 11:04

Rory McCrossan

331,213
40
305
339

score 1 · Answer 2 · answered Feb 07 '13 at 11:20

1

The problem is this part:

var link = $('a').attr('href');

That does not select the link that was clicked, unless you happen to be clicking the very first link present in the HTML of the page. What that will do is select all <a> elements, then return the href attribute of the first one.

Inside your event handler, you want to use this to refer to the link that was clicked:

var link = $(this).attr('href');
// or simply
var link = this.href;

answered Feb 07 '13 at 11:20

Anthony Grist

38,173
8
62
76

Hi Anthony, that for the theory, i'm having to learn a lot in a short space of time, awarded a point up for teaching me something, thanks – CareerChange Feb 07 '13 at 11:24

score 0 · Answer 3 · answered Feb 07 '13 at 11:08

0

Try with this:

link.split('?p=')[1]

answered Feb 07 '13 at 11:08

sohel khalifa

5,602
3
34
46

Jai · Answer 4 · 2013-02-07T11:26:33.443

0

Try this: http://jsfiddle.net/7atyG/1/

$(document).on('click', '.dvPagerCities a', function (ev) {
   ev.preventDefault();
   var link = $(this).attr('href');
   var Linkval = link.substr(link.indexOf('=') + 1);
   alert(Linkval);
});

edited Feb 07 '13 at 11:26

answered Feb 07 '13 at 11:14

Jai

74,255
12
74
103

score 0 · Answer 5 · edited May 23 '17 at 11:48

0

String s = "Jecy penny ? like sears";

String[] arr = s.split("\\?");  

Added \\ before ?, as ? has a special meaning

String res = arr[0];

May be you are wrong at escape character for ' ? '

check this link Remove all characters after a particular character

edited May 23 '17 at 11:48

Community

1
1

answered Feb 07 '13 at 11:20

sasi

4,192
4
28
47

Extract characters after ?= in link

5 Answers5