url params vue

To handle URL parameters in a Vue application, you can use the $route object from the Vue Router. The $route object contains information about the current route, including the URL parameters.

To access URL parameters in Vue, you can follow these steps:

1. Import Vue Router: First, make sure you have installed Vue Router in your project. If you haven't, you can install it using the following command:

npm install vue-router

1. Create a Vue Router instance: In your main JavaScript file, import Vue and Vue Router, and create a new Vue Router instance. Here's an example:

import Vue from 'vue'
import VueRouter from 'vue-router'

Vue.use(VueRouter)

const router = new VueRouter({
  // routes configuration
})

1. Define routes with parameters: Inside the routes configuration, define the routes that can have parameters. Use the :paramName syntax to define a parameter. Here's an example:

const routes = [
  {
    path: '/user/:id',
    component: UserComponent
  }
]

1. Access URL parameters in a component: In your component, you can access the URL parameters using the $route.params object. Each parameter will be available as a property on $route.params. Here's an example:

export default {
  mounted() {
    const userId = this.$route.params.id
    // Use the userId parameter in your component
  }
}

1. React to parameter changes: If you want to react to changes in URL parameters within the same component, you can use the watch option. Here's an example:

export default {
  watch: {
    '$route.params': {
      immediate: true,
      handler(newParams, oldParams) {
        // React to parameter changes here
      }
    }
  }
}

By following these steps, you can handle URL parameters in a Vue application and access them in your components. Remember to define the routes with parameters in the Vue Router configuration and use the $route.params object to access the parameters in your components.