Question

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Different forms of $(document).ready
What is the difference between these jQuery ready functions?

What is the difference between the following two functions?:

$(function() { });

and

$(document).ready(function(){});

Answer 1

.ready is a handler function for use once the DOM is ready
The .ready() method is generally incompatible with the attribute.
I would use $(function() {}); normally.

$(document).ready(function(){}); is typically used for anonymous functions

All three of the following syntaxes are equivalent:

$(document).ready(handler)
$().ready(handler) (this is not recommended) 
$(handler)

http://api.jquery.com/ready/