Delay Loading Images And Javascript In. The data- attribute contains the URL path of the image you ultimately want to load. For images loaded using the tag the browser uses the src attribute of the tag to trigger the image load.

If you DO use an event and the image is loaded before the Javascript is loaded then the event fires with no code to react to it. This is fundamental rule especially in homepages that need a small load time - it might be harder to maintain but it is well worth the effort. This article describes how to use JavaScript to delay the loading of pictures share for everyone to reference the specific contents are as follows When a Web page contains a large number of pictures if the beginning of all the pictures loaded it is bound to cause problems in performance and efficiency the user may be waiting for too long to leave.
FAQ How do I delay loading images or JavaScript to my site.
Preloading and the JavaScript Image object Lots of high-res images can really spruce up a Web site. This article describes how to use JavaScript to delay the loading of pictures share for everyone to reference the specific contents are as follows When a Web page contains a large number of pictures if the beginning of all the pictures loaded it is bound to cause problems in performance and efficiency the user may be waiting for too long to leave. Load a blank small image first and. Follow the below steps.