Test Your Vue.js Basics Knowledge - Can You Ace Our 25-Question Quiz?

1/25 What are the advantages of using Vue.js?

Small in size — The size is 18 to 21KB. It requires no time for the user to download and apply it.
Easily understandable — One of the reasons for the popularity of this framework is that it is quite easy to understand. Users can easily add Vue.js to their web project due to its simple structure.
Straightforward integration- you can easily integrate it with the existing applications.
Virtual DOM — It is capable of using the virtual DOM like other existing frameworks such as ReactJS, Ember, and so on. Virtual DOM is considered a lightweight in-memory tree representation of the original HTML DOM and updated without impacting the origina
All of the above

2/25 If you use .passive and .prevent together, .prevent will be ignored. Probably, it will show you a warning.

True
False

3/25 What is used to dynamically bind one or more attributes either a component property to an expression?

v-pre
v-bind
v-once
v-html

4/25 What keyword is used for generating a constant in Vue.js?

Define
Const
None of the above.

5/25 What event modifier is used for performing the click event only for one time?

<a @click.once="dotask"></a>
<a @click.prevent-once="dotask"></a>
<a @click.stop="dotask"></a>
<a @click.passive="dotask"></a>

6/25 How $parent is described in Vue?

The $parent property, like $root, can be used for accessing the parent instance from a child.
It provides direct access, making the application hard to test and debug.
Both of the options above are true.
None of the above is true.

7/25 In Vue.js, what is a 'directive' primarily used for?

To manage state
To perform HTTP requests
To manipulate the DOM
To define methods

8/25 What is the purpose of the 'provide' and 'inject' feature in Vue.js?

For server-side rendering
For passing data down the component tree without props
For managing global state
For integrating with third-party libraries

9/25 How can you make a Vue.js component reactive to changes in an object that was not reactive initially?

Using Vue.set(object, key, value)
This is not possible in Vue.js
By reassigning the object
Using object.key = value

10/25 Which lifecycle hook in Vue.js is called right after the DOM has been updated?

created
beforeUpdate
updated
mounted

11/25 What is the main purpose of using 'slots' in Vue.js components?

To inject content into a component from its parent
To manage global state
To store data
To perform data binding

12/25 What does the 'v-once' directive do in Vue.js?

Listens to an event only once
Renders the element or component once and skips future updates
Applies a CSS class once
Executes a method only once

13/25 In Vue.js, which is the correct way to register a local component?

Vue.component('my-component', {})
components: {'my-component': {}}
Vue.register('my-component', {})
Vue.use('my-component', {})

14/25 What is the purpose of using 'v-bind' with a class in Vue.js?

To bind a method to a class
To dynamically bind one or more class names to an element
To attach an event listener to a class
To conditionally display a class

15/25 In Vue.js, how can you access the root Vue instance within a component?

this.$root
Vue.$root
this.$parent.root
this.root

16/25 How can you define a prop in a Vue.js component that expects a specific data type?

props: { propName: 'String' }
props: { propName: String }
props: ['propName: String']
props: { propName: { type: 'String' } }

17/25 What is the main purpose of the 'beforeRouteEnter' navigation guard in Vue Router?

To modify route parameters before entering a route
To perform actions before the route is confirmed
To prevent navigation to a new route
To load data before entering a route

18/25 How can you dynamically bind multiple attributes to an element in Vue.js?

Using v-bind with an object
Using multiple v-bind directives
Using a computed property
It's not possible to bind multiple attributes dynamically

19/25 What is the purpose of the 'name' property in a Vue.js component?

To specify the name used in the DOM
To define the component's name for recursive calls
To set the name attribute on the root element
To identify the component in Vue Devtools

20/25 In Vue.js, what is the 'el' property used for in a Vue instance?

To define the element to mount the Vue instance on
To specify the parent element for the instance
To declare reactive properties
To set the template for the instance

21/25 Which method is commonly used for manual reactivity in Vue.js?

Vue.set(object, key, value)
Vue.reactify(object, key, value)
this.$forceUpdate()
Vue.observable(object)

22/25 In Vue.js, how can you conditionally apply multiple classes to an element?

Using the v-bind directive with an object syntax
Using multiple v-class directives
Using the v-style directive
This is not possible in Vue.js

23/25 In Vue.js, how do you emit an event from a child component to its parent?

this.$emit('eventName')
Vue.emit('eventName')
this.$parent.emit('eventName')
this.$dispatch('eventName')

24/25 In Vue.js, what is the purpose of the 'ref' attribute?

To reference a DOM or component instance
To define a repeating element in 'v-for'
To store data references for reactivity
To set up a two-way data binding

25/25 In Vue.js, what is the recommended way to pass data to a child component?

Using 'v-bind' to bind data to the child component's attributes
Directly setting properties on the child component instance
Using a global event bus
By modifying the child component's 'data' object

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