Check if Function Exists before Calling? [duplicate]

Question

Possible Duplicate:
jQuery test for whether an object has a method?

I want to set if Function Exists before Calling javascript can you help me how do this and apply on this script

$(document).ready(function() {    $(".cs-text-cut").lettering('words'); }); 

Answer 1

I'm assuming that you're wanting to check and make sure that lettering exists, try this:

http://api.jquery.com/jQuery.isFunction/

Here's an example:

if ( $.isFunction($.fn.lettering) ) {     $(".cs-text-cut").lettering('words'); }