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It is false by default, so it loads in the header where wp_head() is, and if you specify true it will load where wp_footer() appears in the themeīrowsers remember what scripts and stylesheets they've downloaded for a particular site based on the URL of the script and stylesheet. $in_footer – do you want your script to load in the footer? Set this to true or false.By default, WordPress will use its own version number as the version number for your script $ver – the version number for your script, which can be used for cache-busting.$deps – an array containing the $handle for any other scripts your script needs to run (i.e.$src – the path to the source file within your plugin or theme.$handle – what you'll use to refer to this particular script wherever you might need to enqueue it, and you have to include this variable at the very least.So what are these variables and do we need them every time? (This is covered on the Codex page, so I'll be brief and use plain English) This is done using a WordPress function called wp_register_script, and here is its usage according to the WordPress Codex: wp_register_script( $handle, $src, $deps, $ver, $in_footer ) Which front-end and admin pages do I need to load my script on?Īnswering these questions helps you know what you need to do to register and load your script.
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Some of the things to think about when you're coding JavaScript for WordPress are: Telling WordPress About Your Script and What It Needs If you write JavaScript that utilises one of these libraries, you need to tell WordPress that your script needs the library loaded first. A list of included libraries can be found in the WordPress Codex wp_enqueue_script article.Īll those libraries are included, but by default WordPress only loads the ones it needs to, and only when it needs them in the admin.
JAVASCRIPT INCLUDES DOWNLOAD
When you download WordPress, a selection of common JavaScript libraries are already included that you can use for your JavaScript development. There's also some misunderstanding about what exactly the Codex says about this, which I will help clarify.
JAVASCRIPT INCLUDES CODE
This preferred way will ensure your theme or plugin works in all cases, assuming others also code the correct way. While there are several methods that may appear to work in a specific set of circumstances, there is one primary method recommended in the WordPress Codex. If you've ever developed a theme or plugin for WordPress, or worked with one that someone else has created, you've probably come across several different methods for including JavaScript and CSS.
JAVASCRIPT INCLUDES HOW TO
This article is intended as a reference for playing nicely with others.īefore we get started, you can browse through our WordPress Themes and WordPress Plugins, if you need to kickstart your next project professionally.Īnd if, after reading this tutorial, you're still not sure of how to include your JavaScript and CSS files in the right way, it might be worth ordering some of the WordPress services available on Envato Studio.įrom installation to customization, or even SEO and speed optimization, you can get a professional WordPress expert to set things up the right way from the beginning. If you don't adhere to best practices, you run the risk of conflicting with other themes and plugins, and potentially creating problems that could have been easily avoided. Knowing the proper way to include JavaScript and CSS files in your WordPress themes and plugins is very important for designers and developers.