![]() ![]() When performing lazy loading, consider the following tips: In other browsers, you will need to declare the following attributes in the video tag: To lazy load a video that doesn’t autoplay, you can use the HTML5 video tag’s preload attribute.įor videos that autoplay, Google Chrome provides lazy loading automatically. Event handlers such as scroll or resize.Inline tags, using JavaScript to populate the tag if image is in viewport.There are several technical approaches to lazy loading images: To lazy load an image, display a lightweight placeholder image, and replace with the real full-size image on scroll. This object should appear in place of an object’s data fields. Value holder – create a generic object that handles lazy loading behavior.The first time a property on the object is called, load the full data. Ghost – load an object in partial state, only using an identifier.When the virtual object is called, load the real object, then delegate to it. Virtual proxy – when accessing an object, call a virtual object with same interface as the real object.Object data is loaded only after and whenever invoking them, check if null, and if so, load object data. Lazy initialization – This method sets objects to null.Methods for implementing lazy loading in your code include: LazyLoad – LazyLoad is a script that automatically loads images as they enter the viewport.blazy.js – blazy.js is a lightweight JavaScript library for lazy loading and multi-serving images, iframes, video and other resources.There are several open source libraries that can be used to implement lazy loading, including: For example, some websites display a “loading” screen and eagerly load all the resources required for the web application to run. For example, a PHP script with an include statement performs eager loading-as soon as it executes, eager loading pulls in and loads the included resources.Įager loading is beneficial when there is an opportunity or need to load resources in the background. Eager loading also involves pre-loading related entities referenced by a resource. While lazy loading delays the initialization of a resource, eager loading initializes or loads a resource as soon as the code is executed. ![]()
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