How to use vue-router in vue3

1. Step one: Install vue-router

npm install vue-router@4.0.0-beta.13

2. Step two: main.js

Let’s first compare the difference between main.js in vue2 and vue3: ( The first picture is vue2, the second picture is vue3)

It can be clearly seen that the Vue objects we commonly use in vue2 , "disappeared" in vue3 due to the direct use of the createApp method, but in fact the app created using the createApp method is a Vue object. Vue.use(), which is often used in vue2, can be replaced by app in vue3 .use() is used normally; in the main.js file of vue3, use vue-router to directly call the router using the app.use() method.

Note: The route name exported by the import routing file is from "corresponding routing file relative path", the project directory is as follows (vue2 and vue3 are the same):

三, routing file

import { createRouter, createWebHashHistory } from "vue-router"

const routes = [
    {
        path: '/',
        component: () => import('@/pages')             
    },
    {
        path: '/test1',
        name: "test1",
        component: () => import('@/pages/test1')   
    },
    {
        path: '/test2',
        name: "test2",
        component: () => import('@/pages/test2')   
    },
]
export const router = createRouter({
  history: createWebHashHistory(),
  routes: routes
})

export default router

4. app.vue

<template>
  <router-view></router-view>
</template>

<script>

export default {
  name: &#39;App&#39;,
  components: {
  }
}
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

4. Use (such as jump)

We introduce useRoute and useRouter where we need to use routing (equivalent to $route and $router in vue2)

<script>
import { useRoute, useRouter } from &#39;vue-router&#39;
export default {
  setup () {
    const route = useRoute()
    const router = useRouter()
    return {}
  },
}</script>

Example: Page jump

<template>
  <h2>我是test1</h2>
  <button>toTest2</button>
</template>
<script>
import { useRouter } from &#39;vue-router&#39;
export default {
  setup () {
    const router = useRouter()
    const toTest2= (() => {
      router.push("./test2")
    })
    return {
      toTest2
    }
  },
}
</script>
<style>
</style>

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