define( [

"../core",
"../var/document",
"../core/readyException",
"../deferred"

], function( jQuery, document ) {

“use strict”;

// The deferred used on DOM ready var readyList = jQuery.Deferred();

jQuery.fn.ready = function( fn ) {

readyList
        .then( fn )

        // Wrap jQuery.readyException in a function so that the lookup
        // happens at the time of error handling instead of callback
        // registration.
        .catch( function( error ) {
                jQuery.readyException( error );
        } );

return this;

};

jQuery.extend( {

// Is the DOM ready to be used? Set to true once it occurs.
isReady: false,

// A counter to track how many items to wait for before
// the ready event fires. See #6781
readyWait: 1,

// Handle when the DOM is ready
ready: function( wait ) {

        // Abort if there are pending holds or we're already ready
        if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
                return;
        }

        // Remember that the DOM is ready
        jQuery.isReady = true;

        // If a normal DOM Ready event fired, decrement, and wait if need be
        if ( wait !== true && --jQuery.readyWait > 0 ) {
                return;
        }

        // If there are functions bound, to execute
        readyList.resolveWith( document, [ jQuery ] );
}

} );

jQuery.ready.then = readyList.then;

// The ready event handler and self cleanup method function completed() {

document.removeEventListener( "DOMContentLoaded", completed );
window.removeEventListener( "load", completed );
jQuery.ready();

}

// Catch cases where $(document).ready() is called // after the browser event has already occurred. // Support: IE <=9 - 10 only // Older IE sometimes signals “interactive” too soon if ( document.readyState === “complete” ||

( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

// Handle it asynchronously to allow scripts the opportunity to delay ready
window.setTimeout( jQuery.ready );

} else {

// Use the handy event callback
document.addEventListener( "DOMContentLoaded", completed );

// A fallback to window.onload, that will always work
window.addEventListener( "load", completed );

}

} );