Load js file from in wp-admin only shop manager user through functions.php file

functions.php

$user = wp_get_current_user();
$allowed_roles = array('shop_manager');

if( array_intersect($allowed_roles, $user->roles ) ) {
	//Load JavaScript for admin panel (wp-admin/backend)
	add_action( 'admin_enqueue_scripts', 'hide_admin_menu_load_custom_script' );

	function hide_admin_menu_load_custom_script() {
		wp_enqueue_script('custom_js', get_stylesheet_directory_uri() .'/js/custom.js', array('jquery'));
	}

}