What is the difference between these jQuery ready functions?

Question

what is difference between

$(function(){

}); 

and

$(document).ready(function() { 

});

Answer 1

Nothing whatsoever.

This function behaves just like $(document).ready(), in that it should be used to wrap other $()

You can see this in the source code:

rootjQuery = jQuery(document);

...

} else if ( jQuery.isFunction( selector ) ) {
    return rootjQuery.ready( selector );
}