Enqueue Scripts Only if widget is active

functions.php

<?php
add_action( 'wp_enqueue_scripts', 'colormag_scripts_styles_method' );
/**
 *  Enqueues styles and scripts.
 */
function colormag_scripts_styles_method() {

	$suffix = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '' : '.min';
  
  if(is_active_widget( '', '', 'colormag_category_post_slider')){
	  wp_enqueue_script( 'colormag-bxslider', COLORMAG_JS_URL . '/jquery.bxslider' . $suffix . '.js', array( 'jquery' ), '4.1.2', true );
  }