Question

I have a string which has a number in it that I would like to replace with another number.

ie

<a href="" id="my_link">blah blah 32 blah blah</a>

I know there is only going to be 1 number in this string.

I can get this far:

var my_string = $('a#my_link').text();

But basically I don’t know how to then perform a search on my_string for a numeral and replace that number with something else.

Is that possible with jQuery?

Thanks for any ideas.

Answer 1

Many jQuery methods like .text() can accept a function that returns the value to insert.

Try it out: http://jsfiddle.net/6mBeQ/

$('#my_link').text( function(i,txt) {return txt.replace(/\d+/,'other value'); });

This removes the need to run the selector twice.

Also, when you are getting an element by its ID, it is actually a little quicker if you do not include the tag name.

So instead of

$('a#my_link')

it is better to do

$('#my_link')

as I did above.