The Practical Frontend Interview Guide

After 14+ years as a frontend developer, I’ve seen one consistent pattern in interviews.

Many strong developers fail machine coding rounds. Not because they lack knowledge, but because they haven’t practiced the right type of problems.

Most preparation focuses on:

1. React theory
2. JavaScript concepts
3. Generic DSA questions

But real frontend interviews often include tasks like:

1. Building a Todo app
2. Creating an autocomplete search
3. Implementing debounce or throttle
4. Designing a data table with sorting
5. Building React components from scratch

This guide is built around practical interview patterns I’ve seen across product companies and startups.

What’s Included

1. Core JavaScript fundamentals
2. Frontend-focused DSA problems
3. JavaScript machine coding tests
4. React machine coding tasks
5. Clear solutions with explanations
6. Interview tips and common mistakes

Who This Is For

1. Beginners preparing for frontend roles
2. Developers with 1–5 years of experience
3. Anyone preparing for machine coding rounds
4. Developers targeting product companies

This guide will be updated with more questions over time.

If you have questions about frontend interviews, feel free to DM me on LinkedIn.