要在Angular项目中应用最新的Web API如Intersection Observer、Web Share API,首先需要确保你的Angular项目是最新版本,并且你的浏览器也支持这些新的API。 Intersection Observer API: Intersection Observer API可以用来监听元素与视口的交叉情况,适合用于实现无限滚动、懒加载等功能。要在Angular项目中应用Intersection Observer...
Angular UI 组件IntersectionObserver对象 IntersectionObserver对象，从属于Intersection Observer API，提供了一...
可以使用npm或者yarn安装intersection-observer库,并在polyfills.ts文件中导入。 创建一个IntersectionObserver实例:在组件中,我们可以使用ngAfterViewInit生命周期钩子来创建IntersectionObserver实例。在这个钩子中,我们可以选择一个目标元素并定义观察器的配置选项。 监听IntersectionObserver的回调函数:当目标元素的可见性发生变化...
总的来说,通过Intersection Observer API实现的懒加载主要包括以下几个步骤: 创建一个intersection observer实例; 通过这个实例可以观测到我们希望懒加载的元素的可见情况; 当元素出现在视窗中,加载元素; 一旦元素加载完成,则停止对他的观测; 在Angular中,我们可以将这些功能放进一个指令里。 将以上功能封装成一个Angula...
Intersection Observer 是一个用于检测元素是否进入视口的 API,也可以用来实现虚拟滚动。它能够在目标元素进入或离开视口时触发回调,从而动态加载或卸载元素。 @ViewChild('startMarker', { static: true }) startMarker: ElementRef; @ViewChild('endMarker', { static: true }) endMarker: ElementRef; private obse...
intersection-observer 0.12.2 间接依赖 npm sax 1.2.4 间接依赖 npm minimatch 9.0.3 间接依赖 npm make-dir 4.0.0 间接依赖 npm @types/yargs-parser 21.0.0 间接依赖 npm is-equal-shallow 0.1.3 间接依赖 npm d3-polygon 3.0.1 间接依赖 npm execa 7.2.0 间接依赖 npm @babel/plugin-transform-object...
A library for declarative use of Intersection Observer API with Angular waterplea •4.12.0•2 months ago•1dependents•Apache-2.0published version4.12.0,2 months ago1dependentslicensed under $Apache-2.0 93,392 ng-packagr Compile and package Angular libraries in Angular Package Format (APF)...
DetectsrouterLinks within the viewport(usingIntersection Observer) Waits until the browser is idle(usingrequestIdleCallback) Checks if the user isn't on a slow connection(usingnavigator.connection.effectiveType) or has data-saver enabled (usingnavigator.connection.saveData) ...
You can pass any optionsIntersection Observeraccepts using the[inViewportOptions]property. This allows offsets to be set using therootMarginproperty. This property works the same asmarginproperty in CSS. app.component.html Amet tempor excepteur occaecat nulla. Limit example app.component.html Amet te...
implement the lazy load of images that are compatible with all browsers. Theng-lazyload-imageis a lightweight library you can use for lazy loading images. It internally uses theIntersection Observer APIfor scrolling the listeners. Once you set up the library, you can use it as in the ...