<p>JavaScript is a powerful programming language that creates a dynamic and interactive experience for site visitors. Your ads use JavaScript to run auctions, display creatives, and measure viewability and engagement. But every piece of JavaScript running on your site has a cost.</p> <p>Over time, sites can get bogged down with unnecessary JavaScript code, impacting performance and ad revenue.</p> <p>So, how can you make sure that your JavaScript is not costing you money?</p> <p>In