Isotope. Metafizzy. Kendo UI. Plugins/Authoring. Stop paying your jQuery tax. Reminder, script tags block rendering It is common advice to move all your external JavaScript includes to the footer. Recently, the movement for fancy JavaScript loaders like ControlJS, script.js and so on has also picked up steam. The reason for this advice is sound and pretty simple. Nothing, Nada, Zilch below non asynchronous or deferred script tags gets rendered until the script is downloaded, parsed (perhaps compiled) and executed.
With one tiny exception that is Delayed Script Execution in Opera. There are quite a few technical reasons why scripts block. Often people avoid the async attribute on script tags cause they usually execute in the order they return this means you need to be more fancy about figuring out when the script is ready. Why is that jQuery synchronous script include stuck in the html 'HEAD' section? jQuery solves the age old problem of figuring out when your document is ready. $(wowThisIsSoEasy); // aka. The jQuery tax The initial tax The refresh tax The constant tax. jGrowl.