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 How to use for loop in Vue.js?

vFor
*v-for
v-for
*ngFor

3/25 Once a View Model is destroyed, all the event listeners are automatically deleted.

True
False

4/25 What is the difference between v-html and v-text?

v-text sets the textContent of the node
v-html sets the innerHTML of the element
Both of the statements above are true.
Both of the statements are false.

5/25 All are life cycle hooks in Vue except ...

beforeCreate
created
mounted
beforeMount
didMount

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 the role of the 'watch' property?

To perform deep object comparisons
To execute a function when a specific data property changes
To bind data to template elements
To loop through items in an array

8/25 What is the purpose of the 'v-slot' directive in Vue.js?

To conditionally render elements
To access scoped slot content in a child component
To bind dynamic class names
To listen for DOM events

9/25 Which Vue.js lifecycle hook should be used for fetching data when a component is created?

mounted
created
beforeCreate
beforeMount

10/25 Which command is used to create a new Vue.js project using Vue CLI?

vue create project-name
vue new project-name
vue init project-name
vue start project-name

11/25 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

12/25 What is the purpose of the 'key' attribute in a v-for directive in Vue.js?

To provide a unique identifier for each element
To optimize list rendering
To define the order of elements
To bind data to list items

13/25 Which method is used to programmatically navigate to a different route in Vue.js using Vue Router?

this.$route.navigate('/path')
this.$router.push('/path')
Vue.navigate('/path')
this.$router.goto('/path')

14/25 How is 'Vue.nextTick()' primarily used in Vue.js?

For error handling
To wait for the next DOM update cycle before executing code
To trigger a component update
To delay a method execution

15/25 In Vue.js, which option is used to define a component's initial data state?

data: {}
state: {}
model: {}
props: {}

16/25 What is the main use of the 'methods' property in a Vue.js component?

To store computed properties
To define functions that can be used in template expressions and event handlers
To bind external libraries
To define initial data values

17/25 What is the typical use case for the 'created' lifecycle hook in Vue.js?

To manipulate the DOM
To initialize data, set up event listeners, and start timers
To fetch server-side data
To integrate with other JavaScript libraries

18/25 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', {})

19/25 In Vue.js, what is the effect of using the 'v-once' directive on a component?

It destroys the component after one use
It renders the component only once, and subsequent re-renders are ignored
It listens for an event only once
It applies a CSS class to an element only once

20/25 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

21/25 In Vue.js, which of the following is a correct way to make a deep watch on an object?

watch: { 'object': { deep: true } }
watch: { object: { handler: 'method', deep: true } }
watch: { object.deep: 'method' }
this.$watch('object', 'method', { deep: true })

22/25 Which Vue.js feature allows you to perform side effects in response to reactive data changes?

Methods
Computed properties
Watchers
Directives

23/25 What is the purpose of the 'v-show' directive in Vue.js?

To toggle the visibility of an element
To show an element for a single render
To insert or remove an element from the DOM
To display data-bound values

24/25 Which Vue.js directive is used to bind an event listener to an element?

v-bind
v-model
v-on
v-for

25/25 How can you define local state in a Vue.js component?

Using the 'state' option
Using the 'data' function
Using the 'computed' property
Using the 'methods' property

Image for the last page of the Certificate