JQuery callback Method

This function behaves just like $(document).ready(), in that it should be used to wrap other $() operations on your page that depend on the DOM being ready to be operated on. While this function is, technically, chainable - there really isn't much use for chaining against it. You can have as many $(document).ready events on your page as you like. See ready(Function) for details about the ready event.

Finally we can say that this function allows you to bind a function to be executed when the DOM document has finished loading.

In this Example Executes the function when the DOM is ready to be used.

$(function(){
  // Document is ready
});


jQuery(function($) {
  // Your code using failsafe $ alias here...
});