Vuejs trigger function on route change

To trigger a function in Vue.js when the route changes, you can follow these steps:

1. Import the necessary Vue.js components and libraries.
2. Create a new Vue instance or use an existing one.
3. Define the function that you want to trigger when the route changes.
4. Use the Vue.js lifecycle hook beforeRouteUpdate to call the function when the route changes.
5. Add the necessary logic inside the function to handle the route change.
6. Test the functionality by navigating between different routes in your Vue.js application.

Here is an example:

// Step 1: Import necessary components and libraries
import Vue from 'vue';
import VueRouter from 'vue-router';

// Step 2: Create a new Vue instance or use an existing one
const app = new Vue({
  el: '#app',
  router: new VueRouter({
    routes: [...]
  })
});

// Step 3: Define the function to be triggered on route change
function handleRouteChange() {
  // Step 5: Add logic to handle the route change
  console.log('Route changed!');
}

// Step 4: Use the beforeRouteUpdate hook to call the function
app.beforeRouteUpdate((to, from, next) => {
  handleRouteChange();
  next();
});

This example assumes that you have already set up a Vue.js application with a router. The function handleRouteChange will be called every time the route changes, and you can add your specific logic inside it to handle the route change.