how to append string to <a href=" with jQuery or Javascript?

Question

I've the elements as follows,

<div id="pager">
<a href="/somepath/1">First</a>
<a href="/somepath/1">Previous</a>
<a class="" href="/somepath/1">1</a>
<a class="Current" href="/somepath/2">2</a>
<a class="" href="/somepath/3">3</a>
<a href="/somepath/3">Next</a>
<a href="/somepath/20">Last</a>
</div>

and I want it to be changed as follows within browser.

<div id="pager">
<a href="/somepath/1?a=text">First</a>
<a href="/somepath/1?a=text">Previous</a>
<a class="" href="/somepath/1?a=text">1</a>
<a class="Current" href="/somepath/2?a=text">2</a>
<a class="" href="/somepath/3?a=text">3</a>
<a href="/somepath/3?a=text">Next</a>
<a href="/somepath/20?a=text">Last</a>
</div>

So that I can use the "a" data values to next page. Can any one give me the code, which does the appends inside

div id="pager" -> <a> -> href="

and i wants to remove the added text with another onChange event.

Thanks in advance

Karl-André Gagnon · Accepted Answer · 2013-07-19 13:32:49Z

34

Since jquery is tagged :

$('#pager a').each(function(){
     this.href += '?a=text';
})

Vanilla JS would look like this :

var a = document.getElementById('pager').getElementsByTagName('a'),
    length = a.length;

for(var i=0; i< length; i++){
    a[i].href += '?a=text';
}

edited Jul 19, 2013 at 13:32

answered Jul 19, 2013 at 13:04

Karl-André Gagnon

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7 Comments

Karl-André Gagnon Over a year ago

@Bondye What is wrong with .each function? "+1 Finally one without that .each() function... People don't understand .each()..". The answer where you posted this comment, what do you think happen behind the code? Alsoo, .each() is faster : jsperf.com/each-vs-function

Blazemonger Over a year ago

@Karl-AndréGagnon Personally, I prefer to use .attr() with a function instead of .each() because I find it more readable. But I certainly can't argue with performance testing. (I wonder if some optimization in jQuery could fix that?)

Karl-André Gagnon Over a year ago

@Blazemonger Well that's a personnal preference since i prefer using .each(), So we cant arg on that :) @Bondye It is not looping twice, it is actually the same result as using a function (like Blaze's answer). Here the revelant part in jquery code :

for ( ; i < length; i++ ) { 					fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) ); 				}. The only adding to the

.each` way is an additionnal function call (wich is why each is faster). I think your comment is more revelant for function like .addClass() wich is useless to loop through elements & call it after

Karl-André Gagnon Over a year ago

@Blazemonger on a side note, the vanilla js is the slowest one. Any idea why (i probably did something wrong in the code)?

Blazemonger Over a year ago

@Karl-AndréGagnon Probably something to do with this (source code)

|

Blazemonger · Accepted Answer · 2013-07-19 14:06:20Z

15

.attr(), like many jQuery functions, can take a function argument that modifies the existing value:

$('#pager a').attr('href',function(i,str) {
   return str + '?a=text';
});

edited Jul 19, 2013 at 14:06

answered Jul 19, 2013 at 13:05

Blazemonger

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2 Comments

user9371102 Over a year ago

@Blazemonger Thanks and I'll accept Karl-André Gagnon's answer. You have wow ans and how to remove the added text "?a=text" with the another onChange event?

Blazemonger Over a year ago

"return str.split('?')[0];" should do it.

Barış Uşaklı · Accepted Answer · 2013-07-19 13:04:11Z

6

$('#pager a').each(function() {
   $(this).attr('href', $(this).attr('href') + '?a=text');
});

answered Jul 19, 2013 at 13:04

Barış Uşaklı

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Comments

Aamir Shah · Accepted Answer · 2013-07-19 13:04:33Z

5

Simply use the attr property. Example :-

$("a").attr("href", "http://www.google.com/")

This will do the job.

answered Jul 19, 2013 at 13:04

Aamir Shah

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Comments

vikrant singh · Accepted Answer · 2013-07-19 13:05:52Z

3

$("#pager").find("a").each(function(){
var $this=$(this);
$this.attr("href",$this.attr("href")+"?a=text");
})

answered Jul 19, 2013 at 13:05

vikrant singh

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Comments

Khawer Zeshan · Accepted Answer · 2013-07-19 13:04:00Z

2

you can use attr method

$('a').attr('href', '/somepath/1?a=text');

And if you want to change the href of a specific <a> give that '' a unique id and than change its href as follows

$('#link').attr('href', '/somepath/1?a=text');

answered Jul 19, 2013 at 13:04

Khawer Zeshan

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Comments

Lucas Willems · Accepted Answer · 2013-07-19 13:05:42Z

2

Try this code :

$('#pager a').each(function(){
    this.href += '?a=text'
})

answered Jul 19, 2013 at 13:05

Lucas Willems

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