Category: jQuery

Call REST endpoints with proper HTTP methods and JSON bodies.

Inject HTML fragments with .load() or AJAX + .html().

Post to PHP endpoints and return JSON with json_encode.

Use jQuery only as the client — PHP (or an API) talks to MySQL.

Use WordPress’s bundled jQuery correctly in themes and plugins.

Access selected files via the input’s files property / FormData.

Understand AJAX as async HTTP without full page reloads.

Call remote endpoints with the jQuery AJAX helpers.

Configure method, URL, data, headers, and callbacks with $.ajax().

Get and set input values with .val().