此属性可以添加到 < img > 元素中,也可以添加到 < iframe > 元素中。 属性的值为 loading=lazy 会告诉浏览器,如果图像位于可视区时,则立即加载图像,并在用户滚动到它们附近时获取其他图像。 使用decoding=async 实现图片的异步解码,浏览器便会异步解码图像,加快显示其他内容。这是图片优化方案中可选的一环 ...
goto('https://sdk-test.percy.dev/lazy-loading') }) it('Visual Regression Test Percy - Lazy Loading', async () => { await page.evaluate(scrollToBottom); await page.waitForTimeout(5000); await percySnapshot(page, "percy-lazyload-visual-test-puppeteer-jest") }) }) await page.evaluate(...
const routes: Routes = [ { path: 'lazy', loadChildren: async () => (await import('./lazy/lazy.module')).LazyModule, }, { path: '', pathMatch: 'full', redirectTo: 'lazy' }, ]; Legacy syntax (Angular v7 and below) Lazy loading in Angular has come a long way since the begi...
Lazy load pattern (Async pattern triggered onload)# So, how to you make sure you don't block onload? Well, you wrap your code inside a function that's called on load. When the onload event triggers, you know you haven't blocked it. ...
The defineAsyncComponent function can take a config object as its argument. In the config object, we can specify the following options. loader is the component we want to lazy load. loadingComponent is the component we want to use that contains a loading message. suspensable tells Vue if we...
Lazy loading scripts with jQuery If you utilize jQuery library on your website, this snippet will let you accomplish async loading of external JS files: $.ajax({url:'http://yoursite.com/script.js',dataType:'script',cache:true,// or get new, fresh copy on every page loadsuccess:function...
Use responsive images syntax. Set far-out expires headers on images and have a cache-busting strategy (like changing the file name). Useloading="lazy" Usedecoding="async" Use inline CSS/SVG for a blurry placeholder. Apparently, there is but one tool that does it all:eleventy-high-performanc...
// Unset `decoding` attribute if `$filtered_decoding_attr` is set to `false`. unset( $optimization_attrs['decoding'] ); } elseif ( in_array( $filtered_decoding_attr, array( 'async', 'sync', 'auto' ), true ) ) { $optimization_attrs['decoding'] = $filtered_decoding_attr; ...
A markdown-it plugin supporting Chrome 75'snative image lazy-loadingandasync decoding. Install $ npm install markdown-it-image-lazy-loading Usage Load it in ES module. importmarkdownitfrom'markdown-it';importlazy_loadingfrom'markdown-it-image-lazy-loading';constmd=markdownit();md.use(lazy...
Store it as classic JS instead of an ES module that we need to pull apart first. Added benefit is that it shrinks the serialized representation by 5%. First commit is #978, necessary for the -C fl...