Editing JQuery $('#id') selector vs $(document.getElementById('id') This edit will create a new revision. Your details (optional) Name Email (won’t be displayed; might be used for Gravatar) URL Test case details Title * Published (uncheck if you want to fiddle around before making the page public) Description (in case you feel further explanation is needed)(Markdown syntax is allowed) Fastest way get a jQuery object of a DOM element of which I have the ID. document.getElementById has the advantage of not requiring escaping for special characters. Are you a spammer? (just answer the question) Preparation code Preparation code HTML (this will be inserted in the <body> of a valid HTML5 document in standards mode) (useful when testing DOM operations or including libraries) <div id="el">Some HTML element</div> <script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> Include JavaScript libraries as follows: <script src="//cdn.ext/library.js"></script> Define setup for all tests (variables, functions, arrays or other objects that will be used in the tests) (runs before each clocked test loop, outside of the timed code region) (e.g. define local test variables, reset global variables, clear canvas, etc.) (see FAQ) var d = {}; d.id = function (el) { return document.getElementById(el); } Define teardown for all tests (runs after each clocked test loop, outside of the timed code region) (see FAQ) Code snippets to compare Test 1 Title Async (check if this is an asynchronous test) Code jQuery('#el'); Test 2 Title Async (check if this is an asynchronous test) Code jQuery(document.getElementById('el')); Test 3 Title Async (check if this is an asynchronous test) Code document.getElementById('el'); Test 4 Title Async (check if this is an asynchronous test) Code d.id('el')