Call order of jQuery ready callback

Question

If have two javaScript functions in a page which are required to be called when document load is complete. Is is possible that any function can executed first or it will be

Answer 1

jQuery ready uses the Deferred object system :

ready: function( fn ) {
    // Add the callback
    jQuery.ready.promise().done( fn );

    return this;
},

(from the source code)

And the documentation states that

Callbacks are executed in the order they were added

So yes, your callbacks will be executed in order of addition.