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Lets you register a script in the functions.php file to be called from another part of your site. For example you can register a javascript file for the gallery component and only enqueue it in the page if the gallery component has been used.

// Register script in functions.php file
function register_gallery_script(){
	wp_register_script('galleryjs', get_stylesheet_directory_uri() . '/path/to/gallery.js', array(), '1.0', true);
add_action( 'wp_enqueue_scripts', 'register_gallery_script' );

// Call the script from the component
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