Vue.js?

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VUE JS

ASSESSMENT

(YOU HAVE ONLY 30 MINUTES TO COMPLETE THIS PART [20 Questions])

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1. In Vue.js, what does the "v-cloak" directive do?

It defines a custom directive

It hides an element until Vue's compilation is done

It creates a transition effect

It binds a class dynamically

2. How can you prevent the default behavior of an event in Vue.js?

event.preventDefault()

event.prevent()

this.preventEvent()

this.$preventDefault()

3. What is the purpose of lazy loading routes in Vue Router?

It delays the loading of the entire Vue app

It speeds up the initial loading of the Vue app

It reduces the size of the Vue app

It improves the performance of the Vue app

4. What is the lifecycle hook that is called after the Vue instance has been created?

created

mounted

updated

destroyed

5. What is the purpose of the "meta" field in Vue Router routes?

It defines metadata for the Vue app

It sets up event listeners

It specifies the methods that can be called in the template

It handles the component's lifecycle hooks

6. What is the purpose of the "watch" option in a Vue.js component?

It watches for changes in data properties

It defines computed properties

It sets up event listeners

It handles the component's lifecycle hooks

7. How can you handle 404 errors (page not found) in Vue Router?

Use the <not- found> component

Configure a wildcard route

Set up a special route for 404

Use the $404 method in Vue Router

8. What is the purpose of the "v-on" directive in Vue.js?

It binds an attribute dynamically

It sets up event listeners

It conditionally renders an element

It loops through an array

9. In Vue.js, how can you conditionally render content based on a condition?

v-show

v-if

v-bind

v-for

10. What is the purpose of the "transition" tag in Vue.js?

It defines a custom transition effect

It creates a new Vue instance

It sets up event listeners

It loops through an array

11. What is the purpose of the "template" option in a Vue component?

It defines computed properties

It specifies the HTML template for the component

It sets up event listeners

It handles the component's lifecycle hooks

12. How can you navigate to a different route programmatically in Vue Router?

this.$route.navigate()

this.$router.navigate()

Vue.navigate()

Vue.$router.navigate()

13. How do you import a Vue.js component into another component?

import Component from 'Component.vue';

require('Component.vue');

import { Component } from 'vue';

import Component from './Component.vue';

14. What is the purpose of the "props" option in a Vue.js component?

It defines computed properties

It specifies the methods that can be called in the template

It sets up event listeners

It receives data from a parent component

15. What is the purpose of the "provide/inject" feature in Vue.js?

It provides a way to inject CSS styles into components

It establishes a connection between parent and child components

It manages the state of the Vuex store

It controls the routing of the Vue app

16. How can you access the Vuex store in a Vue component?

this.$store

Vue.store

this.store

Vue.$store

17. What is the purpose of the "v-pre" directive in Vue.js?

It prevents a component from being re-rendered

It skips compilation for this element and all its children

It pre-fetches data before rendering

It pre-renders the component

18. How do you create a computed property in Vue.js?

computed: {}

computed() {}

computed = {}

computed = function() {}

19. How can you bind inline styles dynamically in Vue.js?

v-bind:style

v-inline-style

v-style

v-styles

20. What is Vuex in Vue.js used for?

It manages the application state

It handles HTTP requests

It facilitates component communication

It enables navigation between views in a single-page application

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