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Covering Vue 3, Composition API, reactivity, components, TypeScript, Nuxt, SSR, and more.
VueWikiVue.js Interview Questions
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🌱 Beginner
What's the difference between ref and reactive?
Think about your answer first
ref works with any value type and requires .value access. reactive works only with objects, no .value needed, but can't be reassigned or destructured safely.
Did you know the answer?
What is Vue and what are its main features?
What is the Virtual DOM and how does Vue use it?
Is Vue a library or a framework? Why?
What JavaScript do you need to learn before Vue?
How do you create a Vue project from scratch?
What is Vite and how does it work?
How do Vue DevTools help with debugging?
What's the difference between v-if and v-show?
What's the purpose of :key in v-for?
Why can't you use v-if and v-for on the same element?
Why doesn't v-show work on template elements?
How does event handling work in Vue?
How does list rendering work with v-for?
What is conditional rendering in Vue?
How do you inject raw HTML in Vue and why is it dangerous?
How do you create custom directives in Vue?
What is v-model and how does it differ from .sync in Vue 2?
What are event modifiers and why does order matter?
What is v-once and v-memo? When should you use them?
Why does mutating props directly cause warnings?
How do scoped styles, CSS Modules, and dynamic classes work in Vue?
What is the difference between props and state in Vue?
What is lifting state up and when should you do it?
How does v-model work on custom components?
What are slots and what are they used for?
What is Provide/Inject?
What are Teleport, Fragments, and Suspense?
Why does my template ref return null?
Why do undeclared emits fire twice?
Why doesn't scoped CSS style child component elements?