jasonslyvia/react-lazyload
React Lazyload
该项目是一个 React 懒加载组件，旨在通过推迟子元素的渲染直到它们进入浏览器视口来提高前端性能。它作为一个资源生命周期管理器和可见性触发器，防止屏幕外组件的不必要挂载，从而减少初始页面加载时间和内存使用。
该库为可见性触发器提供了配置，允许使用自定义偏移量和特定滚动容器来确定组件何时加载。它包括管理组件生命周期的机制，可以选择组件在出现后是保持加载还是在离开视口时卸载。
其他功能涵盖通过使用占位符进行延迟渲染，以及优化滚动和调整大小监听器的事件处理。该系统还支持手动可见性验证，以强制进行视口检查或要求组件显示。
Features
- Component Lazy Loadings - Defers the mounting of heavy React elements until they enter the viewport to reduce initial network and memory overhead.
- Viewport Action Triggers - Triggers component mounts and network requests specifically based on element visibility within the viewport.
- Higher-Order Components - Uses higher-order components to wrap target elements and inject conditional rendering logic based on visibility.
- Visibility-Triggered Actions - Controls the appearance of UI elements based on scroll position, custom offsets, and window resize events.
- Frontend Performance Optimization - Improves page load times and reduces memory usage by delaying the rendering of off-screen components.
- Frontend Performance Optimizers - Optimizes frontend performance by preventing the unnecessary mounting of components outside the user's view.
- Intersection Observer Implementations - Implements the native IntersectionObserver API to detect when elements enter the viewport without polling.
- Resource Lifecycle Managers - Acts as a resource manager by mounting and unmounting components as they enter or leave the visible area.
- Deferred Element Rendering - Displays lightweight placeholder elements until the actual component is triggered for mounting to optimize performance.
- Resource Lifecycle Management - Manages the mounting and unmounting lifecycle of components to reclaim system resources when elements leave the screen.
- Component Lifecycle Management - Manages the operational lifecycle of components, allowing them to remain loaded or unmount upon leaving the viewport.
- Infinite Scroll - Lazy-loads components and images to improve performance.
- Performance Tools - Lazy loading for components and images.
