Front-End Programming Languages

Primary Language: JavaScript (Vanilla JS or Alpine.js)
1. Vanilla JavaScript
Very lightweight, no libraries required.

Ideal for simple scenarios such as capturing events, sending Ajax, manipulating the DOM, and displaying suggestions.

2. Alpine.js (Recommended if you want more interactivity)
Similar to Vue.js but very small (~10KB).

Easy to integrate, no build or bundling required.

Enables flexible state control, display/hide, and data interaction without heavy loads.

3. AJAX via WordPress
Use wp_ajax_ and wp_ajax_nopriv_ with admin-ajax.php to implement requests for suggestions.

📦 Other libraries (only if necessary)
Tailwind CSS: If you need a CSS library to help you maintain code lightness and design consistency, use Tailwind.

fetch API: Instead of jQuery AJAX, use fetch() to send and receive data in a modern and lightweight way.