Two implementation codes of Vue-router programmatic navigation

Two ways to navigate the page

Declarative navigation: The way to achieve navigation by clicking on a link is called declarative navigation, for example: the <a></a> link in a normal web page or <router-link></router-link> in Vue
Programmatic navigation: The method of implementing navigation by calling JavaScript API is called programmatic navigation. For example: location.href in ordinary web pages

Basic usage of programmatic navigation

Commonly used programmatic navigation APIs are as follows:

this.$router.push ('hash address')

this.$router.go(n)

 const User = {  
 		template: '<div><button @click="goRegister">Jump to the registration page</button></div>',  
  	methods: { 
  	 goRegister: function(){   
    // Control route redirection programmatically this.$router.push('/register'); 
  } 
  } 
 }

Specific implementation:

<!DOCTYPE html>
<html lang="en">
 <head>
 <meta charset="UTF-8" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <meta http-equiv="X-UA-Compatible" content="ie=edge" />
 <title>Document</title>
 <!-- Import vue file-->
 <!-- <script src="./lib/vue_2.5.22.js"></script> -->
 <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
 <!-- <script src="./lib/vue-router_3.0.2.js"></script> -->
 <script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
 </head>
 <body>
 <!-- Area controlled by the vm instance-->
 <div id="app">
  <router-link to="/user/1">User1</router-link>
  <router-link to="/user/2">User2</router-link>
  <router-link :to="{ name: 'user', params: {id: 3} }">User3</router-link>
  <router-link to="/register">Register</router-link>

  <!-- Route placeholder -->
  <router-view></router-view>
 </div>

 <script>
  const User = {
  props: ['id', 'uname', 'age'],
  template: `<div>
   <h1>User component -- User id: {{id}} -- Name: {{uname}} -- Age: {{age}}</h1>
   <button @click="goRegister">Go to the registration page</button>
  </div>`,
  methods: {
   goRegister() {
   this.$router.push('/register') //Programmatic navigation}
  },
  }

  const Register = {
  template: `<div>
   <h1>Register Component</h1>
   <button @click="goBack">Go Back</button>
  </div>`,
  methods: {
   goBack() {
   this.$router.go(-1)
   }
  }
  }

  // Create a routing instance object const router = new VueRouter({
  // All routing rules routes: [
   { path: '/', redirect: '/user' },
   {
   // Named route name: 'user',
   path: '/user/:id',
   component: User,
   props: route => ({ uname: 'zs', age: 20, id: route.params.id })
   },
   { path: '/register', component: Register }
  ]
  })

  // Create vm instance object const vm = new Vue({
  //Specify the controlled area el: '#app',
  data: {},
  //Mount the router instance object// router: router
  router
  })
 </script>
 </body>
</html>

Parameter rules for the router.push() method

 // string (path name) 
router.push('/home') 
// Object router.push({ path: '/home' }) 
// Named routes (passing parameters) 
router.push({ name: '/user', params: { userId: 123 }}) 
// With query parameters, becomes /register?uname=lisi 
router.push({ path: '/register', query: { uname: 'lisi' }})

This is the end of this article about the implementation code of Vue-router programmatic navigation. For more relevant Vue router programmatic navigation content, please search 123WORDPRESS.COM's previous articles or continue to browse the following related articles. I hope everyone will support 123WORDPRESS.COM in the future!

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