Enqueue Editor Assets For Custom Block

editor-assets.php

<?php
function organic_profile_block_editor_assets() {
	// Scripts.
	wp_enqueue_script(
		'organic-profile-block', // Handle.
		plugins_url( 'block.js', __FILE__ ), // Block.js: We register the block here.
		array( 'wp-blocks', 'wp-i18n', 'wp-element' ), // Dependencies, defined above.
		filemtime( plugin_dir_path( __FILE__ ) . 'block.js' ) // filemtime — Gets file modification time.
	);

	// Styles.
	wp_enqueue_style(
		'organic-profile-block-editor', // Handle.
		plugins_url( 'editor.css', __FILE__ ), // Block editor CSS.
		array( 'wp-edit-blocks' ), // Dependency to include the CSS after it.
		filemtime( plugin_dir_path( __FILE__ ) . 'editor.css' ) // filemtime — Gets file modification time.
	);
} // End function organic_profile_block_editor_assets().

// Hook: Editor assets.
add_action( 'enqueue_block_editor_assets', 'organic_profile_block_editor_assets' );