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This article presents a custom lazy loading directive for Vue 3, implementing the IntersectionObserver API to optimize page load performance. The directive manages data acquisition and rendering in infinite scroll scenarios, ensuring continuous loadi
How to Implement a Custom Lazy Loading Directive in Vue 3 to Optimize Page Load Performance?
To implement a custom lazy loading directive in Vue 3, follow these steps:
Create a new directive by defining a JavaScript object with the following properties:
bind
: Called when the directive is bound to an element.bind
: Called when the directive is bound to an element.inserted
: Called when the element is inserted into the DOM.inserted
hook, add a listener for the IntersectionObserver
inserted
: Called when the element is inserted into the DOM.inserted
hook, add a listener for the IntersectionObserver
API. This API allows you to observe an element's intersection with its parent container.Update the DOM by rendering the loaded data or content.
How Does the Custom Directive Manage Data Acquisition and Rendering Process for Infinite Scroll Scenarios?This process repeats as the user continues scrolling, ensuring continuous loading and rendering of data.
How Does the Directive Interact with Vue 3's Reactivity System to Keep Data and View Synchronized?The above is the detailed content of Lazy loading, infinite scrolling vue3 custom instructions. For more information, please follow other related articles on the PHP Chinese website!