Function for conditionally enqueing minified or un-minified scripts based on WP_DEBUG

functions.php

<?php 

add_action( 'wp_enqueue_scripts', 'debug_theme_enqueue_styles' );

function debug_theme_enqueue_styles() {

    if (WP_DEBUG == true) :
      $random = mt_rand();
      wp_enqueue_style( 'main-css-unminified', get_template_directory_uri() . '/assets/styles/build/main.css', '', $random );
    
    else :
      wp_enqueue_style( 'main-css-minified', get_template_directory_uri() . '/main.min.css', '', MY_THEME_VERSION );
    
    endif;
    
}