Comprehensive frontend interview questions covering HTML, CSS, JavaScript, React, Vue, and modern web development practices. Core Web Technologies Fundamental concepts every frontend developer should know: HTML & DOM: Document structure, DOM manipulation, semantic HTML CSS: Box model, flexbox, grid, positioning, …

Easy-level frontend interview questions covering HTML, CSS, JavaScript, React, and Vue fundamentals. Q1: What is the DOM and how does it work? Answer: DOM (Document Object Model): Tree-like representation of HTML document that JavaScript can manipulate. DOM Manipulation 1// Select elements 2const element = …

Hard-level frontend interview questions covering advanced patterns, performance optimization, and complex architectures. Q1: Explain React Fiber architecture and reconciliation. Answer: Fiber Architecture Reconciliation Phases Priority Levels Concurrent Features 1import { useTransition, useDeferredValue } from …

Medium-level frontend interview questions covering advanced React, Vue, state management, and performance optimization. Q1: Explain React Context API and when to use it. Answer: Prop Drilling Problem Context Solution 1import { createContext, useContext, useState } from 'react'; 2 3// Create context 4const …

Complete Vue.js 3 guide from project setup to building a functional Todo application. Includes Composition API, TypeScript, and best practices. Docker Setup Dockerfile 1# Build stage 2FROM node:18-alpine AS builder 3WORKDIR /app 4COPY package*.json ./ 5RUN npm ci 6COPY . . 7RUN npm run build 8 9# Production stage …