Vue JS Interview Questions: Ace Your Next Interview with These 10 Questions

In this article, we’ll see Vue JS Interview Questions.

Vue.js has gained tremendous popularity in the web development community due to its simplicity, flexibility, and scalability. As a Vue.js developer, it’s crucial to stay ahead of the game and be well-prepared for interviews.

We’ve curated a list of 10 unique Vue JS Interview Questions that will help you showcase your expertise and ace your next Vue.js interview.

Vue JS is a progressive JavaScript framework that is used to build user interfaces. It is a popular choice for web developers because it is easy to learn and use, and it offers a lot of flexibility and power.

Vue JS Interview Questions:

If you are interviewing for a Vue JS developer position, you will likely be asked some questions about the framework. Here are some of the most common Vue JS interview questions:

1.What is Vue.js?

Vue.js (pronounced /vjuː/, like view) is a JavaScript library that helps you build web applications using the the MVVM (Model-View-ViewModel) architectural pattern.

2. How to start working in Vue.js?

Just download Vue.js by using any below methods and add in your project –

  1. https://vuejs.org/js/vue.min.js
  2. npm install vue
  3. bower install vue, or
  4. CDN – https://cdnjs.cloudflare.com/ajax/libs/vue/1.0.26/vue.min.js

3. What is VueJs Life-cycle Diagram?

The below is a diagram for the instance life-cycle and this is refer from the vuejs.org guide.

The VueJs Life-cycle Diagram looks like –

4. List type of Directive are available in Vuejs.

In Vue js following types of directives are available

  • General Directives
  • Literal Directives
  • Empty Directives
  • Custom Directives

5. What are Directives in VUE.js, List some of them you used?

The concept of directive in Vue js is drastically simpler than that in Angular. Vue.js directives provides a way to extend HTML with new attributes and tags. Vue.js has a set of built-in directives which offers extended functionality to your applications.You can also write your custom directives in Vue.js .Below are list of commonly used directives in Vue.js

  • v-show
  • v-if
  • v-model
  • v-else
  • v-on

6. List some features of Vue.js.

Vue js comes with following features

  • Templates
  • Reactivity
  • Components
  • Transitions
  • Routing

7. What are filters in VUE.js?

In Vue js filters are used to transform the output that are going to rendered on browser.
A Vue.js filter is essentially a function that takes a value, processes it, and then returns the processed value. In the markup it is denoted by a single pipe (|) and can be followed by one or more arguments:

 

<element directive="expression | filterId [args...]"></element>

In Vue 2.0, there are no built-in filters are availables, however you are free to create your own filters.

8. How to create a custom filter in Vue.js?

Vue.filter() method is used to create and register a custom filter in Vue js. Vue.filter() method takes two parameters a filterId that is usnique name to filter that you going to create and a filter function that takes a value as the argument and returns the transformed value.

Vue.filter('reverse', function (value) {
  return value.split('').reverse().join('')
})

9. What are Components in Vue.js? How to register a component inside other component

Vue Components are one of most powerful features of Vue js.In Vue components are custom elements that help you extend basic HTML elements to encapsulate reusable code.
Following is the way to register a Vue component inside other component

 

export default {
  el: '#your-element'
  components: {
      'your-component'
  }
}

10. How to create component communication?

You can not pass data directly between two components. For passing data between components, you will need two elements: 1. Props (For parent to child communication) 2. emit (For child to parent communication)

 

Resource Links:

https://www.toptal.com/vue-js/interview-questions
 
Mastering Vue.js requires a deep understanding of its core concepts, features, and best practices. By familiarizing yourself with these unique interview questions, you’ll be well-prepared to demonstrate your expertise and stand out from the competition.
 
Remember, Vue JS Interview Questions not only assess your technical knowledge but also reflect your ability to apply Vue.js concepts effectively in real-world scenarios. Good luck with your Vue JS Interview Questions and happy coding!
 
I hope this article helps you for interviews by Vue JS Interview Questions.

Last updated on May 25th, 2023.