Function Data

2.1.1/test/jquery-2.1.1.js:3508–3519

()

function Data() {
	// Support: Android < 4,
	// Old WebKit does not have Object.preventExtensions/freeze method,
	// return new empty object instead with no [[set]] accessor
	Object.defineProperty( this.cache = {}, 0, {
		get: function() {
			return {};
		}
	});

	this.expando = jQuery.expando + Math.random();
}

Data.uid = 1;
Data.accepts = jQuery.acceptData;