Vue.js?

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VUE JS

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1. 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

2. 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

3. In Vue.js, what is the purpose of the "ref" attribute?

It defines a reference to a child component

It sets the data property for a component

It creates a computed property

It specifies the root element of a component

4. 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

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

computed: {}

computed() {}

computed = {}

computed = function() {}

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

v-bind

v- model

v-show

v-if

8. 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

9. How can you handle route parameters in Vue Router?

this.$route.params

this.params

Vue.route.params

Vue.params

10. Which directive is used for two-way data binding in Vue.js?

v-model

v-bind

v-show

v-if

11. How can you handle user input with debounce in Vue.js?

v-debounce

v-throttle

v-input-debounce

v-model-debounce

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

<router- bind>

. <router-link>

<route-component>

<router-view>

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

v-show

v-if

v-bind

v-for

14. How can you loop through an array and render items in Vue.js?

v-for

v-if

v- loop

v-repeat

15. What is the purpose of the Vue Router in a Vue.js application?

It manages the application state

It handles HTTP requests

It facilitates component communication

It enables navigation between views in a single-page application

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

beforeCreate

beforeMount

beforeUpdate

beforeDestroy

17. How can you create a mixin in Vue.js?

Vue.mixin()

mixin: {}

mixins: {}

this.$mixin()

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

Vue.filter()

filters: {}

filter() {}

this.$filter()

19. 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

20. 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

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