Overview This tutorial explains how to use WordPresss body_class output to conditionally control JavaScript behavior across templates, pages, post types, taxonomies and custom conditions. Youll learn: How WordPress generates body classes and how to add custom classes safely. Patterns for detecting classes in JavaScript (vanilla and jQuery). Advanced patterns: DOM-based routing, performance tips, conditional script […]
Introduction Persisting user preferences in localStorage from JavaScript is a common, performant, and privacy-friendly way to remember UI choices on the client side. In a WordPress context you’ll often combine client-side persistence for fast UI feedback with server-side persistence (usermeta, options, or REST) for cross-device sync. This article covers every practical detail: API fundamentals, patterns, […]
Overview This tutorial shows, in full detail, how to add a light/dark theme selector to a WordPress site and persist the users preference using JavaScript. It covers: CSS architecture (custom properties and selector strategy). Accessible toggle markup you drop into your theme. Robust JavaScript to detect system preference, apply the theme immediately to avoid flash, […]
Introduction This article shows, in exhaustive detail, how to add a robust copy-to-clipboard feature for code blocks on a WordPress site using JavaScript. It covers all commonly needed approaches (theme functions.php enqueue, lightweight plugin, compatibility with common highlighters such as Prism / Highlight.js / EnlighterJS), accessibility, localization, fallback behavior for older browsers, keyboard support, performance […]
Introduction This article is a complete, production-ready tutorial for building an accessible accordion in WordPress using the native HTML5 details/summary elements, plus progressive JavaScript enhancements. It covers semantic markup, accessibility rules and ARIA patterns you should be aware of, styling, keyboard interaction, optional single-open behavior, motion-safe animations, WordPress integration (how to paste markup into the […]
Introduction Accessible modals must manage keyboard focus so that users who navigate with the keyboard or assistive technologies remain inside the modal while it is open. This article explains in exhaustive detail how to implement a focus trap in modals using plain JavaScript, how to integrate it into a WordPress theme or plugin, and how […]
Why accessible menus matter Accessible menus ensure that keyboard users and people using assistive technologies (screen readers, switch devices, etc.) can discover, operate, and understand the sites navigation. ARIA attributes combined with proper keyboard handling and focus management create an experience that is perceivable, operable, and understandable — the core of web accessibility. Patterns covered […]
Introduction — Why build an accessible modal with native JavaScript Modals are common UI patterns on WordPress sites: dialogs for forms, image galleries, cookie notices and confirmations. But modals are also frequent accessibility traps. Screen reader users, keyboard-only users and people with slow motion preferences can be blocked or confused by naive implementations. This tutorial […]
Introduction This tutorial shows step-by-step how to add autocomplete to your WordPress search using the native HTML datalist element and JavaScript. It covers two approaches (simple static datalist for very small sites and the recommended dynamic approach using the WordPress REST API), plus an admin-ajax alternative, performance and security considerations, accessibility tips, and complete code […]
Introduction This tutorial shows how to implement an instant search (typeahead) for WordPress using the REST API, the native fetch() browser API, and a debounce function to avoid excessive requests. It covers two approaches: Using the built-in WordPress REST endpoint (wp/v2/posts?search=…). Quick, works for many sites. Creating a custom REST endpoint for advanced control (fields, […]
