Vue3+TS+Vite development skills: How to use Vite for fast packaging and hot reloading

Vue3 TS Vite development skills: How to use Vite for fast packaging and hot reloading

With the rapid development of front-end technology, Vue.js has become the most popular One of the most popular JavaScript frameworks. In the Vue ecosystem, Vue3, as the latest version, brings many exciting new features and improvements. Vite, as a new type of construction tool, achieves extremely fast cold start and hot module replacement by leveraging the native support of ES modules, making it the preferred development tool for Vue3. This article will introduce how to use Vite for Vue3 development, including tips for fast packaging and hot reloading.

1. Install and initialize the Vite project

First, we need to install Vite and initialize a Vue3 project:

npm install -g create-vite
create-vite my-vue-project
cd my-vue-project
npm install

2. Use Vite for development

Developing with Vite is very simple. We just need to run the following command:

npm run dev

Vite will start a development server locally and automatically open a browser window. At this point, we can start writing code. Vite will automatically load the corresponding modules as needed, enabling only the required code to be loaded instead of packaging the entire application into one file. This makes the development process faster and more efficient.

3. Quick packaging

After we complete the development, we need to package the project into a file that can be deployed. Packaging with Vite is very simple, just run the following command:

npm run build

Vite will automatically optimize the code and generate optimized files. Vite's packaging speed is very fast, thanks to its native support for ES modules.

4. Hot reload

Hot reload is a very important function in Vue development. It can automatically reload the page after we modify the code, so that the development process does not require manual refresh. The effect of the page. Vite implements efficient hot reloading by using the hot module replacement plug-in provided by Snowpack.

When using Vite to develop a Vue3 project, hot reloading is automatically enabled by default. We can check the console in the browser's developer tools to get detailed hot reload information.

In addition to hot reloading, Vite also has some very practical features built in, such as CSS preprocessor, dynamic import, etc. We can use the following command to add SCSS support:

npm install -D sass

In the code, we can directly introduce SCSS files:

import "./styles.scss"

5. Using TypeScript

Vue3 provides support for TypeScript With native support, we can directly use TypeScript for Vue development. In the Vite project, we can enable TypeScript through simple configuration.

First, we need to change the main.js file to main.ts and modify the file content:

import { createApp } from 'vue'
import App from './App.vue'

createApp(App).mount('#app')

Then, in the project root Add a new tsconfig.json file in the directory and fill in the following content:

{
  "compilerOptions": {
    "target": "esnext",
    "module": "esnext",
    "strict": true,
    "jsx": "preserve",
    "importHelpers": true,
    "moduleResolution": "node",
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "sourceMap": true,
    "resolveJsonModule": true,
    "lib": ["esnext", "dom"]
  },
  "exclude": ["node_modules"]
}

With the above configuration, we can use TypeScript in the Vite project. We can write Vue components just like using JavaScript while still getting the benefits of type checking.

Summary

Using Vite for Vue3 development is an efficient and fast choice. By utilizing the native support of ES modules, it achieves fast packaging and hot reloading, greatly improving development efficiency. In addition, Vite also supports CSS preprocessor and TypeScript, making our development process richer and more flexible. I hope this article will be helpful to you in Vue3 TS Vite development.

The above is the detailed content of Vue3+TS+Vite development skills: How to use Vite for fast packaging and hot reloading. For more information, please follow other related articles on the PHP Chinese website!