Conditionally Load WordPress Plugin Assets

dequeue-assets.php

<?php

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

/**
 * dequeue-assets.php
 * Resource: http://orbitingweb.com/blog/preventing-plugins-from-loading-js-css-on-all-pages/
 */

//* Finding handles for plugins 
function cf_display_script_handles() {

	global $wp_scripts;

	if (current_user_can( 'manage_options' ) && ! is_admin() ) { # Only load when user is admin

		foreach( $wp_scripts->queue as $handle ) :
			$obj = $wp_scripts->registered [$handle];
		echo $filename = $obj->src;
		echo ' : <b>Handle for this script is:</b> <span style="color:green"> '. $handle .'</span><br/><br/>';
		endforeach;

	}	

}
add_action( 'wp_print_scripts', 'cf_display_script_handles' );

/**
 * Conditionally load plugins
 */

//* Dequeue Let's Review assets
function cf_conditionally_load_lets_review() {

	if ( ! is_singular( 'post' ) || ! has_tag( 'review' ) ) {

		wp_dequeue_script( 'lets-review-js-ext' );
		wp_dequeue_script( 'lets-review-js' );

	}

}	
add_action( 'wp_enqueue_scripts', 'cf_conditionally_load_lets_review' );