Load script only if the block is on the page. #wordpress #gutenberg

enqueue-if-block-is-present.php

function enqueue_if_block_is_present(){
	if(is_singular()){
		//We only want the script if it's a singular page
		$id = get_the_ID();
		$theme_version = wp_get_theme()->get( 'Version' );
		//load only if the block is on the page
		if(has_block('acf/slider',$id)){

			wp_enqueue_script( 'swiper', get_template_directory_uri() . '/assets/js/swiper-bundle.min.js',
			array(), $theme_version,
			false );
			wp_script_add_data( 'swiper', 'async', true );

		}
	}
}
add_action('wp_enqueue_scripts','enqueue_if_block_is_present');