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 define a data property in a Vue component?

data: []

data = {}

data() {}

data: function() {}

2. 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

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

event.preventDefault()

event.prevent()

this.preventEvent()

this.$preventDefault()

5. 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

6. 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

7. What is Vue.js?

A server-side scripting language

A front-end JavaScript framework

A database management system

A programming language

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

created

mounted

updated

destroyed

9. 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

10. What is the purpose of the "methods" option in a Vue component?

It defines the data properties of the component

It specifies the methods that can be called in the template

It sets up event listeners for the component

It handles the component's lifecycle hooks

11. 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

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

v-bind:style

v-inline-style

v-style

v-styles

13. How can you commit a mutation in Vuex?

this.commit()

commit.mutation()

this.$store.commit()

Vuex.commit()

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

v-debounce

v-throttle

v-input-debounce

v-model-debounce

15. 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

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

Vue.mixin()

mixin: {}

mixins: {}

this.$mixin()

17. 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

18. 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

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

this.$route.params

this.params

Vue.route.params

Vue.params

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

emitEvent()

this.$emit()

dispatchEvent()

broadcastEvent()

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