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. 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

2. 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

3. What is the purpose of the "v-show" directive in Vue.js?

It conditionally renders an element based on a condition

It binds an attribute dynamically

It toggles the visibility of an element

It loops through an array

4. 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

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. How can you emit a custom event from a child component to its parent in Vue.js?

emitEvent()

this.$emit()

dispatchEvent()

broadcastEvent()

7. How do you create a Vue.js filter?

Vue.filter()

filters: {}

filter() {}

this.$filter()

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

v-bind:style

v-inline-style

v-style

v-styles

9. How do you dynamically bind a component to a route in Vue Router?

<router- bind>

. <router-link>

<route-component>

<router-view>

10. What is the purpose of the "key" attribute in Vue.js when using v-for?

It specifies the data key for the component

It defines a unique identifier for each item in the list

It sets up event listeners d. It conditionally renders an element

It conditionally renders an element

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

event.preventDefault()

event.prevent()

this.preventEvent()

this.$preventDefault()

12. What is the purpose of the "el" property in a Vue instance?

It specifies the element where the Vue app will be mounted

It defines the data properties of the Vue app

It sets the event listeners for the Vue app

It represents the Vue instance itself

13. Which directive is used to bind an attribute dynamically in Vue.js?

v-bind

v- model

v-show

v-if

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

created

mounted

updated

destroyed

15. 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';

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

v-show

v-if

v-bind

v-for

17. Which Vue.js lifecycle hook is called when a component is about to be destroyed?

beforeCreate

beforeMount

beforeUpdate

beforeDestroy

18. How can you define a data property in a Vue component?

data: []

data = {}

data() {}

data: function() {}

19. 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

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

this.$store

Vue.store

this.store

Vue.$store

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