My way to enqueue scripts in WordPress and load from cache only if the file is not changed

enqueue.php

<?php

	// In plugins
	// ----------
	
	$and_js_ver  = date("ymd-Gis", filemtime( plugin_dir_path( __FILE__ ) . 'js/main.js' ));
	wp_enqueue_script( 'and_js', plugins_url( 'js/main.js',    __FILE__ ), array(), $and_js_ver );
	
	$and_css_ver = date("ymd-Gis", filemtime( plugin_dir_path( __FILE__ ) . 'style.css' ));
	wp_register_style( 'and_css', plugins_url( 'style.css',    __FILE__ ), array(), $and_css_ver );
	wp_enqueue_style( 'and_css' );
	

	// in themes use:       get_template_directory()   / get_template_directory_uri()
	// in child themes use: get_stylesheet_directory() / get_stylesheet_directory_uri()