WordPress | Dynamically reference WordPress site URL in JavaScript | WordPress path url in js script file

During my WordPress development, I often find myself in need of the WP home or blog URL from within the JavaScript code.

Instead of hardcoding url in the JavaScript, we're going to dynamically retrieve the site URL, with a little help in PHP.

<?php wp_register_script( 'MY_TAXONOMY_PLUGIN_CORE', MY_TAXONOMY_PLUGIN_URL . 'assets/script7.js', array('jquery') ); $params = array( 'BASE_URL' => MY_TAXONOMY_PLUGIN_URL, 'ADMIN_URL' => admin_url() ); wp_localize_script( 'MY_TAXONOMY_PLUGIN_CORE', 'MY_TAXONOMY_PLUGIN_CORE', $params); wp_enqueue_script('MY_TAXONOMY_PLUGIN_CORE');

And from jQuery

alert(MY_TAXONOMY_PLUGIN_CORE.BASE_URL);