When making large sites that utilize lots of components by default they are all bundled into the js/app.js file and that file can get very large. This is downloaded and imported into our app on every page load. We will utilize webpack.js and dynamic imports to accomplish this. Component-based image lazy loader for Vue.js 2. Let’s start by creating a component that will show an image (but with no lazy loading involved just yet). Create two new components. once the process is done we should see something like this: All the code we have written for the Vue components gets compiled and stored in the app.js file (located in public/js/app.js). Lazy-loading components is a great way to improve the user experience of your app. It’s the completely same syntax you would use for any other component lazy loading but here you just use it for the root component. - adrienhobbs/vue-lazyload-video # Lazy Loading Routes When building apps with a bundler, the JavaScript bundle can become quite large, and thus affect the page load time. - hilongjw/vue-lazyload First, we are creating a new vue project by using vue-cli. Introduction By default, when writing a Vue.js Single Page Application (SPA), all necessary assets such as JavaScript and CSS files are loaded together when the page is loaded. https://bit.ly/2Tt30az Lazy Loading Components in Vue.js is really interesting. Step 1: Create the ImageItem component in Vue. Let’s start with an example and then convert it so that we use lazy loading – we’ll focus this example on loading a page, but the same principle can be applied to load anything (assets, JSONs, …): Lazy-load router pages. June 5, 2018 Loading Lazy Load List Component For Vue.js 2 This article explains various ways of lazy loading a component in Angular, including via an import statement inside an async-await function and via the then method. With the help of Webpack, it is possible to load pages on demand in Vue.js using the import() function instead of the import keyword. Michiel Mulders demonstrates how, when building a Vue app with Vue CLI, to make use of both Vue’s async components and webpack’s code-splitting … All the code we have written for the Vue components gets compiled and stored in the app.js file (located in public/js/app.js). From Vue's document. We might only need those components on the home page, there would be no reason to bog down the rest of the site by loading them on every single page. This means that having a fast site is important, not just for ranking well in Google Search Engine, but for having users interact with your webpage. It would be more efficient if we can split each route's components into a separate chunks, and only load them when the route is visited. We can additionally pass in a loading component property which will be displayed while the component is being loaded. It would be more efficient if we can split each route's components into a separate chunks, and only load them when the route is visited. The objective is to create components that can be loaded as needed in order to speed up page loads. Thanks to the relatively new Intersection Oberserver API and the concept of Async Components in Vue.js, we can implement a lazy loading utility function rather easily. nuxt.config.js shows components: true for auto importing components. # Lazy loading route. Without it our files would be named 0.js and 1.js. Vue 3 is coming bundles with a lazy loading feature. We learned how to use lazy loading with Vue components. The reason why I’m still writing this article is, that I wanted a more lightweight solution. These components will appear on different pages in the site and only appear on those pages. Vue 2 image and video loader supporting lazy loading Visual 2.x is a simplification of Version 1.x with a greater reliance on modern browser features (IntersectionObserver, object-fit, srcset, sizes, etc). We could apply lazy loading and code splitting in 3 different levels in a Vue app: Components, also known as async components; Router; Vuex modules; But there is something they all have in common: they use dynamic import, which is understood by Webpack since version 2. Let’s breakdown what we have here. Claziest lazy loader out there!. Then we are creating a loadedLanguages array that will keep track of our loaded languages. Our components have been split up into their own JS files and we can see that app.js is smaller than before. Async component is basically an object containing: dynamic component that will be loaded lazily represented by import () function loading component that will be shown until dynamic component … When building apps with a bundler, the JavaScript bundle can become quite large, and thus affect the page load time. So here it is if someone else is looking for the info. In terms of lazy loading I tend to lazy load pages. The code for this project is located at https://github.com/srajpal/laravel-lazy-loading-vue-components. Components that aren't required immediately upon initial render - such as components below the fold, sidebar, modals or any other components that are rendered conditionally with v-if or v-else - qualifies for lazy-loading (aka dynamic import). Published on May 17, 2018; While this tutorial has content that we believe is of great benefit to our community, we have not yet tested or edited it to ensure you have an error-free learning experience. This method also allows transitioning between the two components. It is considered a good practice to lazy load components with: Toggled content; Side panels; Tabs; Components which aren’t available or visible on initial page load; Modals Or at least break this component down piece-by-piece. In this article, we'll take a look at what this term means exactly for the three most used frontend frameworks today: Angular, React and Vue.js. Fast loading speed is essential when creating any web application. Getting started. I don't think we even have 300 components for our huge app at work. Better the performance of Vue.js applications by lazy loading of components. That is all we have to do, we do not need to change the code on our views or update our components. Learn more in the Directory Structure book in the Components chapter. To add more flexibility we can use the new Suspense component which allows us to have async loading content as a component in the template. 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