Which way is efficient?
html, javascript, jquery, jquery-selectors
Solution
The class selector will be an order of magnitude quicker.
That being said, `live()` is deprecated. You should be using `delegate()` or if you are using jQuery 1.7+ `on`()`.
For example:
// < jQ 1.7
$('#staticParent').delegate('.btn-x', 'click', function() { });
// jQ 1.7+
$('#staticParent').on('click', '.btn-x', function() { });
Problem
I have over 500 buttons on the page. ``` <button class="btn-x">test</button> ``` jQuery: ``` // #1 $('button[class*="btn-x"]').live('click', function() { }}); // #2 $('.btn-x').live('click', function() { }}); ``` Which call is efficient now, calling directly by class or button[attr*], I want to know it, because it can cause problem later when I have more then 500 buttons but I am not sure if they affect the same result.