The block-development-example GitHub repository provides some good examples. The wp-scripts package also facilitates the use of JavaScript modules, allowing code distribution across multiple files and resulting in a streamlined bundle after the build process. When a change is detected, it automatically rebuilds the affected files, allowing you to see updates in real-time. It skips minification for easier debugging, generates source maps for better error tracking, and watches your source files for changes. This is ideal for deploying your code to a live site.ĭevelopment Mode ( npm run start): This mode is tailored for active development. Production Mode ( npm run build): In this mode, wp-scripts compiles your JavaScript, minifying the output to reduce file size and improve loading times in the browser.It’s designed to work out of the box with standard configurations for development and production environments. The diagram below provides an overview of the build process when using the wp-scripts package. This tool simplifies development by preconfiguring both, so you rarely need to write custom webpack or Babel configurations.įor an introduction, refer to the Get started with wp-scripts guide. Babel, a plugin for webpack, converts ESNext and JSX into standard JavaScript.Ĭonfiguring webpack and Babel can be challenging, so it’s recommended that you use the package. Webpack is a pluggable tool that processes and bundles JavaScript for browser compatibility. Since browsers cannot directly execute ESNext and JSX, these syntaxes must be transformed into browser-compatible JavaScript. JSX is a syntax extension developed by the React project that enables you to write JavaScript that resembles HTML. Using a build process for block development unlocks the full potential of modern JavaScript, facilitating the use of ESNext and JSX.ĮSNext refers to Javascript’s most recent syntax and features. This process transforms, bundles, and optimizes JavaScript source code and related assets into a format suitable for production environments. However, this form of JavaScript must be transformed into a browser-compatible format, necessitating a build step. By default, it will apply the snippet to all posts or pages in the entire site.Developing blocks for the Block Editor often involves using modern JavaScript (ESNext and JSX), and most examples here in the Block Editor Handbook are written in these syntaxes. The wp_head hook will insert JavaScript code into your site’s header section. You can also choose whether to apply the snippet sitewide or insert it on a specific page. To add JavaScript to your WordPress site, use the wp_head and wp_footer hooks. Otherwise, you can also include JavaScript in the header or footer using the Insert Headers and Footers plugin. Press the Activation toggle and click Save Snippet.For example, we will add a script that shows a welcome message window. Write your code in the Code Preview field.Select JavaScript Snippet from the Code Type drop-down menu. Since we are adding a custom script, hover over Add Your Custom Code (New Snippet) and click Use Snippet. Click the Code Snippet menu from your WordPress dashboard sidebar. Download and install the WordPress plugin.While it offers a paid plan, the free version is sufficient for this task. However, it is difficult and inconvenient since they must write the code from scratch.īelow are the steps on how to add custom WordPress JavaScript using WPCode. One of the most popular options is WPCode.ĭevelopers can also create a custom plugin to store their snippets.

They allow you to save and name code snippets, simplifying management if you have multiple custom scripts for different purposes.Ī WordPress JavaScript plugin also stores your custom snippet, preserving the code after you change or update themes. WordPress plugins let you easily insert code to your site. How to Add JavaScript to WordPress Using the WPCode Plugin

Check out our what is JavaScript article if you are unfamiliar with the programming language.

Enqueue javascript file wordpress