200+ Vue Js MCQ With Online Practice Test

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Vue.js is a progressive JavaScript framework that has gained immense popularity for its simplicity and flexibility in building user interfaces. With its elegant design and ease of integration into projects, Vue.js allows developers to create interactive and dynamic web applications. Vue.js follows a component-based architecture, making it easy to develop and maintain complex applications. Whether you're building single-page applications (SPAs), progressive web apps (PWAs), or incorporating Vue.js into existing projects, it empowers you to craft responsive and feature-rich user experiences with ease and efficiency.

21. What is a Vue instance?

Answer: A JavaScript object

22. Which method is called when a Vue instance is created?

Answer: created

23. How do you create a new Vue instance?

Answer: const vm = new Vue({})

24. Which option is used to specify the HTML element that a Vue instance will be mounted to?

Answer: el

25. How can you access the data properties of a Vue instance?

Answer: vm.$data

26. Which lifecycle hook is triggered before the Vue instance is destroyed?

Answer: beforeDestroy

27. What does the data option in a Vue instance contain?

Answer: Initial data properties

28. Which method is used to watch for changes in a data property of a Vue instance?

Answer: watch

29. What is the purpose of the methods option in a Vue instance?

Answer: To define custom methods

30. How can you access the Vue instance itself within its own methods or lifecycle hooks?

Answer: By using this keyword
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