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Component preloading with preloadComponents

Popularity：56 ℃/2024-08-18 11:50:56

title: Component preloading with preloadComponents
date: 2024/8/18
updated: 2024/8/18
author: cmdragon

excerpt:
Abstract: This article introduces the preloadComponents feature in Nuxt 3, which is used to preload globally registered components in order to reduce the blocking time of the first rendering, and demonstrates how to set up and use this tool to improve the performance of the page through examples.

categories:

  • front-end development

tags:

  • Nuxt3
  • subassemblies
  • preloaded
  • performances
  • Vuejs
  • Web
  • exploit (a resource)

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Nuxt 3 is a powerful framework that enables developers to build modern web applications. To improve page performance, Nuxt providespreloadComponents
This tool, helps you to preload components efficiently.

What is it?preloadComponents？

In Nuxt, certain components are dynamically loaded when they are needed on the page to optimize the initial load time of the page.preloadComponents
Allows you to load specific globally registered components in advance, ensuring that they are loaded before the page is rendered, thus reducing blocking time on the first render.

How to usepreloadComponents？

Step 1: Create a Nuxt3 Project

If you have not created a Nuxt 3 project yet, you can create a new Nuxt 3 project using the following command:

npx nuxi@latest init my-nuxt-app
cd my-nuxt3-app
npm install

Step 2: Create Global Component

existcomponents/ directory to create a global component. For example, let's create a simple button component:

Documentation.components/


<template>
  <button class="my-button">{{ label }}</button>
</template>

<script setup>
  defineProps(['label'])
</script>

<style>
  .my-button {
    padding: 10px 20px;
    background-color: blue;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
</style>

Step 3: Register the component globally

exist or any layout file to register this component globally:

Documentation.


<template>
  <NuxtPage/>
</template>

<script setup>

  definePageMeta({
    components: {
      MyButton,
    },
  });
</script>

Step 4: Use thepreloadComponents

In page components where you wish to use preloading, call thepreloadComponents. For examplepages/ Use it in:

Documentation.pages/


<template>
  <div>
    <h1> Welcome to my Nuxt 3 app</h1>
    <MyButton label="Click Me"/>
  </div>
</template>

<script setup>

  async function preload() {
    await preloadComponents('MyButton');
    // If you have multiple components, you can bulk preload them like this: // await preloadComponents(['MyButton'])
    // await preloadComponents(['MyButton1', 'MyButton2']); }
  }

  preload().
</script>

Step 5: Run your application

Now you can run your Nuxt application and see the results:

npm run dev

interviewshttp://localhost:3000You should see a welcome message and a "click me" button.

caveat

  • preloadComponents It only takes effect on the client side and does not have any effect on the server side.
  • Make sure to use Pascal case for component names.
  • One or more components can be preloaded to improve page load performance.

summarize

In this article, we learned how to use Nuxt 3 with thepreloadComponents to improve the performance of the application. By loading the required ���� pieces in advance, we can ensure a smoother user experience when navigating the page.

For the rest of the article, please click to jump to the personal blog page or scan the code to follow or WeChat search:Programming Intelligence Front-End to Full-Stack Communication and Growth, read the full article:Preloading components with preloadComponents | cmdragon's Blog

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