Vue 3 Interview Questions and Answers for 2 years experience

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Vue 3 Interview Questions and Answers

  1. What is Vue.js and what are its core features?

    • Answer: Vue.js is a progressive JavaScript framework for building user interfaces. Its core features include a component-based architecture, reactivity system, virtual DOM, templating, and a simple API. It's known for its ease of learning and flexibility, allowing for gradual adoption in existing projects.

  2. Explain the difference between Vue 2 and Vue 3.

    • Answer: Vue 3 offers significant performance improvements (smaller bundle size, faster updates), improved TypeScript support, Composition API (for better code organization), improved reactivity system (more granular and efficient), and a better developer experience overall. Vue 2 uses the Options API primarily, while Vue 3 encourages the use of the Composition API.

  3. What is the Composition API and how does it differ from the Options API?

    • Answer: The Composition API groups related logic together within a single `