How to prevent events from being bound multiple times

Question

 $(\'.ajax\').click
 (        
    function()
    {
        // If been bound then we need to return here.
        alert(\':D\');
    }
 )

 $(\'.ajax\').click
 (
            


        

Answer 1

There's a really good way to do this in jQuery.

Here's an example.

function alertEvent() {
   alert(":D");
}
$(".ajax").bind("click", alertEvent);
//When you want to ensure it won't happen twice...
$(".ajax").unbind("click", alertEvent);
$(".ajax").bind("click", alertEvent);

This method will only remove the event you specify, which makes it ideal for what you want to do.