Lazy Loading通过将JavaScript代码分割成多个独立的块来实现。这些块通常是按照功能或路由划分的，每个块包含应用程序的一部分功能。例如，考虑一个电子商务网站，其中包含产品列表、购物车和用户配置等功能。你可以将这些功能拆分成不同的块，使每个块只包含与其相关的代码。让我们以Angular应用程序为例。假设我们有一个 ...
在Angular应用中实现Lazy Loading是提高性能和用户体验的重要步骤。基于路由的懒加载是Angular默认提供的懒...
Lazy loading in Angular, refers to the technique of loading website components, modules, or assets specifically when they are needed, rather than all at once. This approach is particularly relevant in Angular’s Single Page Applications (SPA), where traditionally, all components load simultaneously,...
总结来说,Lazy Loading是提高Angular应用程序性能的重要方式之一,但在实施时需要小心避免常见的错误。避免静态导入Lazy Loaded代码,不要混合静态导入与动态导入,以及为Lazy Loaded代码创建独立的入口点,是实现成功Lazy Loading的关键。通过遵循最佳实践,您可以更好地优化您的Angular应用程序并提供更好的用户体验。 汪子熙 ...
什么是Angular中的Lazy Loading? 懒加载是一种优化Angular应用的方法,它允许将应用代码分割成多个小块,只在需要时加载。这大大减小了初始加载时间,提高了应用性能。懒加载通常与Angular的路由模块一起使用,以实现按需加载各个页面或功能。 在传统的路由配置中,所有路由组件都在应用加载时一次性加载,这可能导致较长的加...
接下来，更新路由配置，指示Angular在导航到特定路由时才加载Lazy Loaded模块，实现优化加载过程。遵循这些最佳实践，可以确保Lazy Loading在Angular应用中实施得当，提升用户体验，优化性能。通过避免常见陷阱并实施正确的策略，我们能最大化利用Lazy Loading带来的优势，为用户带来更流畅的应用体验。
import { Directive, ElementRef } from '@angular/core'; @Directive({ selector:'img'}) export class LazyImgDirective { constructor({ nativeElement }: ElementRef<HTMLImageElement>) { const supports= 'loading'inHTMLImageElement.prototype;if(supports) { ...
In this approach, we are going to do everything ourselves. First, we are going to use Angular CLI command ng generate module to generate a feature module. Please note, for the purpose of lazy loading, our module needs to have routing enabled. We can do this by using the --routing flag...
And that’s it. You can now load styles/scripts on demand and not before. In the next step, I am going to cover how to lazy load local scripts. Lazy Loading Local/Internal Scripts and Styles When Angular CLI is building your application, all the styles and scripts added to the angular...
Lazy loaded routes need to be outside of the root app module. You will want to have your lazy loaded features in feature modules. First, let’s useAngular CLIto create a new project with Angular Router: ng newangular-lazy-loading-example--routing--style=css --skip-tests ...