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How To Load Javascript With Defer Or Async In WordPress 6.3+
Since WordPress 6.3 you can pass an array as the fifth argument of wp_enqueue_script() to set the loading strategy.
How To Pass Php Data To Javascript In WordPress With Wp_Localize_Script
Use wp_localize_script() to expose PHP values such as the AJAX URL, a nonce or the site URL to your JS file.
How To Load A Javascript File Only On A Specific Page In WordPress
Wrap wp_enqueue_script() in a conditional tag so the file loads only where it is needed.
How To Enqueue A Javascript File In WordPress
Use wp_enqueue_script() inside the wp_enqueue_scripts hook to load your JS file the right way.
