separate .js

[masuhar]

Check if the post has a shortcode block, and insert a script tag only when it has. See https://www.briancoords.com/how-to-enqueue-js-for-a-shortcode/

But what are they?

• wp_register_script --- registers a script to be enqueued later using the wp_enqueue_script() function.
• wp_enqueue_script --- registers the script if $src provided (does NOT overwrite), and enqueues it.
• add_action( 'wp_enqueue_scripts', ...) --- Fires when scripts and styles are enqueued.

[masuhar]

USe https://wordpress.stackexchange.com/questions/5144/how-to-link-to-images-in-my-plugin-regardless-of-the-plugin-folders-name/ for the URL of the JS file.