Vue3+TS+Vite development skills: how to build a maintainable and scalable application architecture

In the above code, we userefto define responsive datamessageand use it in the template .

2. Component communication

In large applications, communication between components is an important issue. Vue3 providesprovide/injectandemitstwo ways to achieve communication between components.

provide/injectData can be provided in ancestor components and used in descendant components. For example:

// 祖先组件  // 后代组件 

In the above code, we provide a data nameduserDatathroughprovide, and then in the descendant component throughinjectto use.

emisUsed for communication between parent and child components. For example:

// 子组件   // 父组件  

In the above code, the child component triggers a custom event throughemitand passes the data to the parent component. The parent component implements two-way binding through the.syncmodifier.

3. State management

In large-scale applications, state management is very important. Vue3 provides a new state management library@vue/reactivity, which can help us better manage the state of the application.

We can use the state management library as a separate module, for example, create astorefolder, then create aindex.tsfile in it, write The following code:

import { reactive } from 'vue'; export interface State { count: number; } const state = reactive({ count: 0, }); export function increment() { state.count++; }

Then, we can use this state and method in the component:

In this example, we store the state and method in separate files so that they can be used when needed time to visit.

4. Routing Management

For front-end applications, routing management is also a very important part. In Vue3, we can usevue-routerto manage routing.

First, we need to installvue-router, enter the following command in the terminal:

npm install vue-router@4

Then, create a # in thesrcdirectory ##routerfolder, and create aindex.tsfile in it, write the following code:

import { createRouter, createWebHistory } from 'vue-router'; const routes = [ { path: '/', name: 'Home', component: () => import('../views/Home.vue'), }, { path: '/about', name: 'About', component: () => import('../views/About.vue'), }, ]; const router = createRouter({ history: createWebHistory(), routes, }); export default router;

main.tsrouterand use it:

import { createApp } from 'vue'; import App from './App.vue'; import router from './router'; createApp(App).use(router).mount('#app');

to generate navigation links, and render the components corresponding to the current route through .

Vue 3 official documentation: https://v3.vuejs.org/
• TypeScript official documentation: https://www.typescriptlang .org/
• Vite official documentation: https://vitejs.dev/

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