![]() If we wanted to register a script used in a theme to be output on the frontend, this is the code that you would use: ![]() This handle must be unique among all registered scripts. A handle, which is a text string that identifies a particular JavaScript file.To register a script with WordPress, two pieces of data need to be provided: Using names to designate scripts with wp_register_script We will look at this individual pieces in detail, starting with how WordPress identifies scripts. Gutenberg screens and blocks: allows scripts to be used along with the Gutenberg block editor, both on the frontend and in the admin area.The admin area: used by logged-in users to edit content.The frontend: the theme visible to the user.To control where the scripts are output, specific hooks are used. This is done through the wp_register_script and wp_enqueue_script functions. Enqueuing the script: Adding it to the list of scripts to output on the page.Registering the script: Adding it to the central registry of all JavaScript files used on a site.There are two steps for adding a script to WordPress: The Scripts API will transform this information into well formed HTML script tags and output them on in the header or footer HTML of the page. Instead you tell WordPress which scripts you want to use, and how. In WordPress, JavaScript is never directly added to a page. Understanding the inner workings of the Scripts API Have a look at the common issues that developers run into when using the Scripts API.Get an overview of how to debug issues with scripts.Get to know the specifics of using JavaScript with Gutenberg.Understand how scripts can be added to various screens in the admin.See how to add scripts to the frontend, and restrict them to specific pages.Learn to add scripts to the footer of a page instead of the header.Ensure that your visitors always see the latest versions of your scripts by clearing browser caches.Output in the right order to account for dependencies between the scripts.Understanding when to register a script first, and when to enqueue directly.Discover how we can output scripts on the page by enqueueing them.Learn how to make scripts available via a unique identifier by registering them.Get an in-depth understanding of the scripts API.In this article, we will have an in-depth look at this fundamental API, and learn how to add JavaScript to WordPress. ![]() Instead you rely on a dedicated WordPress API for handling JavaScript code. But in WordPress, adding JavaScript is more complex, because you do not directly change the HTML templates. Adding JavaScript to an HTML page is straightforward: you add a script tag into the section of the HTML code.
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