vue, react

Question 1

What is Vue.js primarily used for? a) Back-end development b) Front-end development c) Database management d) Mobile development

Answer 1

b) Front-end development

Question 2

Who created Vue.js? a) Evan You b) Ryan Dahl c) Dan Abramov d) Jordan Walke

Answer 2

a) Evan You

Question 3

What year was Vue.js first released? a) 2010 b) 2013 c) 2014 d) 2016

Answer 3

c) 2014

Question 4

Which programming language does Vue.js use? a) JavaScript b) Ruby c) Python d) C++

Answer 4

a) JavaScript

Question 5

What type of framework is Vue.js? a) Full-stack framework b) Front-end framework c) Back-end framework d) Mobile framework

Answer 5

b) Front-end framework

Question 6

What does MVVM stand for in Vue.js architecture? a) Model-View-ViewModel b) Model-View-Model c) Management-View-Model d) Model-Value-ViewModel

Answer 6

a) Model-View-ViewModel

Question 7

Which directive is used for conditional rendering in Vue.js? a) v-bind b) v-if c) v-for d) v-show

Answer 7

b) v-if

Question 8

What does the v-for directive in Vue.js do? a) It binds data to an attribute b) It loops through an array or object c) It conditionally renders elements d) It attaches an event listener

Answer 8

b) It loops through an array or object

Question 9

What is the purpose of v-bind in Vue.js? a) Loop through data b) Bind an attribute to a property c) Conditionally render an element d) Add an event listener

Answer 9

b) Bind an attribute to a property

Question 10

Which testing framework is officially recommended for unit testing in Vue.js? a) Jest b) Mocha c) Vitest d) Jasmine

Answer 10

c) Vitest

Question 11

What command is used to create a new Vue.js project? a) npm create vue@latest b) vue init c) npm vue create d) vue-cli

Answer 11

a) npm create vue@latest

Question 12

Which of the following is NOT a feature of Vue.js? a) Reactive data binding b) Component-based architecture c) Virtual DOM d) Multi-threading

Answer 12

d) Multi-threading

Question 13

What does Vue.js primarily rely on for its templating? a) JSX b) JavaScript functions c) Templates with special directives d) TypeScript

Answer 13

c) Templates with special directives

Question 14

What is the main difference between Angular and React? a) Angular is a framework; React is a library b) React is a framework; Angular is a library c) They are the same d) Both are not used for web development

Answer 14

a) Angular is a framework; React is a library

Question 15

Which of the following is a feature of React but not Vue.js? a) JSX b) Virtual DOM c) Two-way data binding d) Component-based architecture

Answer 15

a) JSX

Question 16

Which programming paradigm does Vue.js follow? a) Functional programming b) Object-oriented programming c) Reactive programming d) Procedural programming

Answer 16

c) Reactive programming

Question 17

Which of the following is used for handling HTTP requests in Vue.js? a) Axios b) Fetch API c) XMLHttpRequest d) All of the above

Answer 17

d) All of the above

Question 18

Which Vue.js feature allows developers to manage state across multiple components? a) Vuex b) Pinia c) Redux d) Context API

Answer 18

a) Vuex

Question 19

What type of testing does Cypress perform? a) Unit testing b) Integration testing c) End-to-end testing d) All of the above

Answer 19

c) End-to-end testing

Question 20

What is the purpose of the event loop in JavaScript? a) Execute asynchronous code b) Manage synchronous code c) Handle DOM manipulation d) Execute synchronous and asynchronous code together

Answer 20

a) Execute asynchronous code

Question 21

Which of the following uses the Incremental DOM for rendering? a) React b) Vue.js c) Angular d) Svelte

Answer 21

c) Angular

Question 22

What type of DOM does React use? a) Virtual DOM b) Incremental DOM c) Real DOM d) Hybrid DOM

Answer 22

a) Virtual DOM

Question 23

Which of the following frameworks uses Virtual DOM? a) Vue.js b) React c) Angular d) Both a and b

Answer 23

d) Both a and b

Question 24

What is the primary advantage of using a Virtual DOM? a) It speeds up rendering by minimizing direct DOM manipulations b) It increases memory usage c) It is easier to manage than Incremental DOM d) It reduces the complexity of the code

Answer 24

a) It speeds up rendering by minimizing direct DOM manipulations

Question 25

Which of the following is true about the use of TypeScript in Vue.js? a) It is mandatory b) It is an optional feature c) It is only available in Vue 2.x d) It is used for server-side programming

Answer 25

b) It is an optional feature

Question 26

Which of the following statements is correct about Vue.js and React? a) Vue is a framework, React is a library b) Vue is a library, React is a framework c) Both are frameworks d) Both are libraries

Answer 26

a) Vue is a framework, React is a library

Question 27

Which of the following frameworks is designed primarily for mobile development? a) Angular b) React Native c) Vue Native d) All of the above

Answer 27

b) React Native

Question 28

What type of framework is Vue.js compared to React? a) Full-stack framework b) Backend framework c) Front-end framework d) Mobile framework

Answer 28

c) Front-end framework

Question 29

Which of the following features are supported out of the box in Vue.js? a) Two-way data binding b) State management c) Component lifecycle hooks d) All of the above

Answer 29

d) All of the above

Question 30

What is Vue CLI used for? a) To generate a Vue.js project b) To manage application dependencies c) To deploy a Vue.js application d) All of the above

Answer 30

d) All of the above

Question 31

Which directive in Vue.js is used to loop through an array of items? a) v-bind b) v-model c) v-for d) v-if

Answer 31

c) v-for

Question 32

Which feature does Angular have that Vue.js doesn't? a) Directives b) Two-way data binding c) Dependency Injection d) Virtual DOM

Answer 32

c) Dependency Injection

Question 33

Which of the following frameworks is best for building Progressive Web Apps (PWAs)? a) Angular b) React c) Vue.js d) All of the above

Answer 33

d) All of the above

Question 34

What is Vue Router used for in Vue.js? a) Manage the URL and page state b) Handle form validation c) Handle state management d) Handle user input events

Answer 34

a) Manage the URL and page state

Question 35

Which of the following is used to validate forms in Vue.js? a) Custom validation b) VeeValidate c) Pinia d) Axios

Answer 35

b) VeeValidate

Question 36

Which of the following is used to bind data in a Vue.js template? a) v-bind b) v-model c) v-for d) v-if

Answer 36

b) v-model

Question 37

What does `mounted()` lifecycle hook do in Vue.js? a) It is called before the component is created b) It is called when the component is rendered c) It is called when the component is updated d) It is called when the component is destroyed

Answer 37

b) It is called when the component is rendered

Question 38

What is the command to run the Vue development server? a) `npm run serve` b) `npm run start` c) `npm run dev` d) `npm run build`

Answer 38

c) `npm run dev`

Question 39

Which library is commonly used for state management in Vue.js? a) Redux b) Vuex c) Context API d) NgRx

Answer 39

b) Vuex