Question

I have several Javascript strings (using jQuery). All of them follow the same pattern, starting with ‘ajax-‘, and ending with a name. For instance ‘ajax-first’, ‘ajax-last’, ‘ajax-email’, etc.

How can I make a regex to only grab the string after ‘ajax-‘?

So instead of ‘ajax-email’, I want just ’email’.

Answer 1

Given a comment you made on another user’s post, try the following:

var $li = jQuery(this).parents('li').get(0);
var ajaxName = $li.className.match(/(?:^|\s)ajax-(.*?)(?:$|\s)/)[1];

Demo can be found here

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Below kept for reference only

var ajaxName = 'ajax-first'.match(/(\w+)$/)[0];
alert(ajaxName);

Use the \w (word) pattern and bind it to the end of the string. This will force a grab of everything past the last hyphen (assuming the value consists of only [upper/lower]case letters, numbers or an underscore).

The non-regex approach could also use the String.split method, coupled with Array.pop.

var parts = 'ajax-first'.split('-');
var ajaxName = parts.pop();
alert(ajaxName);