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An interview runtime. Candidates practise on the same network-isolated sandbox that hiring teams grade on, so what happens in preparation and what happens in the room are the same system.

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The Frontend Lab

The Frontend Lab

Interview prep, deep-dive tutorials, and real interview stories.

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Latest drops Blog1/6
Accessibility wins you can ship today

Accessibility wins you can ship today — lessons learned the hard way, distilled into something you can use today.

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Latest drops Blog2/6
CSS Grid patterns I reach for every week

CSS Grid patterns I reach for every week — lessons learned the hard way, distilled into something you can use today.

Pro Preview
Latest drops Blog3/6
Debouncing vs throttling: a practical guide

Debouncing vs throttling: a practical guide — lessons learned the hard way, distilled into something you can use today.

Free Open
Latest drops Blog4/6
A pragmatic guide to React Server Components

A pragmatic guide to React Server Components — lessons learned the hard way, distilled into something you can use today.

Free Open
Latest drops Blog5/6
Performance budgets that actually stick

Performance budgets that actually stick — lessons learned the hard way, distilled into something you can use today.

Free Open
Latest drops Blog6/6
How the event loop really schedules your code

How the event loop really schedules your code — lessons learned the hard way, distilled into something you can use today.

Supporter Preview

Posts

10 posts — newest first

Interview ExperiencesAug 29, 2026
My Linear Frontend Engineer loop

A round-by-round breakdown of my Linear interview — outcome: offer.

LinearFrontend Engineeroutcome: offer
Free
Interview ExperiencesAug 29, 2026
My Figma Product Engineer loop

A round-by-round breakdown of my Figma interview — outcome: offer.

FigmaProduct Engineeroutcome: offer
Interview ExperiencesAug 29, 2026
My Atlassian Frontend Engineer loop

A round-by-round breakdown of my Atlassian interview — outcome: withdrew.

AtlassianFrontend Engineeroutcome: withdrew
Join to unlock
Interview ExperiencesAug 29, 2026
My Shopify Frontend Developer loop

A round-by-round breakdown of my Shopify interview — outcome: offer.

ShopifyFrontend Developeroutcome: offer
Free
Interview ExperiencesAug 29, 2026
My Netflix UI Engineer loop

A round-by-round breakdown of my Netflix interview — outcome: rejected.

NetflixUI Engineeroutcome: rejected
Interview ExperiencesAug 29, 2026
My Airbnb Senior Frontend Engineer loop

A round-by-round breakdown of my Airbnb interview — outcome: offer.

AirbnbSenior Frontend Engineeroutcome: offer
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Interview ExperiencesAug 29, 2026
My Meta Frontend Engineer loop

A round-by-round breakdown of my Meta interview — outcome: pending.

MetaFrontend Engineeroutcome: pending
Free
Interview ExperiencesAug 29, 2026
My Google Frontend Engineer loop

A round-by-round breakdown of my Google interview — outcome: offer.

GoogleFrontend Engineeroutcome: offer
1–8 of 10

Posts

10 posts — newest first

TutorialsAug 29, 2026
Fetch, Cache, and Revalidate

A focused, practical walkthrough of fetch, cache, and revalidate.

3 lessons
Free
TutorialsAug 29, 2026
CSS Animations & Transitions

A focused, practical walkthrough of css animations & transitions.

3 lessons
TutorialsAug 29, 2026
Building a Custom React Hook

A focused, practical walkthrough of building a custom react hook.

3 lessons
Join to unlock
TutorialsAug 29, 2026
TypeScript Generics from Scratch

A focused, practical walkthrough of typescript generics from scratch.

3 lessons
Free
TutorialsAug 29, 2026
Intro to Web Accessibility

A focused, practical walkthrough of intro to web accessibility.

3 lessons
TutorialsAug 29, 2026
State Management Without a Library

A focused, practical walkthrough of state management without a library.

3 lessons
Join to unlock
TutorialsAug 29, 2026
Understanding the JS Event Loop

A focused, practical walkthrough of understanding the js event loop.

3 lessons
Free
TutorialsAug 29, 2026
Build a Debounced Search Input

A focused, practical walkthrough of build a debounced search input.

3 lessons
1–8 of 10

Posts

10 posts — newest first

Interview PrepAug 29, 2026
Web Performance Interview Questions

The Performance questions that come up in real frontend loops, with crisp answers.

Performance3 questions
Free
Interview PrepAug 29, 2026
Accessibility Interview Questions

The a11y questions that come up in real frontend loops, with crisp answers.

a11y3 questions
Interview PrepAug 29, 2026
Async JavaScript Deep Dive

The JavaScript questions that come up in real frontend loops, with crisp answers.

JavaScript3 questions
Join to unlock
Interview PrepAug 29, 2026
Data Structures in JavaScript

The DSA questions that come up in real frontend loops, with crisp answers.

DSA3 questions
Free
Interview PrepAug 29, 2026
Browser & Networking Questions

The Web questions that come up in real frontend loops, with crisp answers.

Web3 questions
Interview PrepAug 29, 2026
Frontend System Design Questions

The System Design questions that come up in real frontend loops, with crisp answers.

System Design3 questions
Join to unlock
Interview PrepAug 29, 2026
TypeScript Interview Questions

The TypeScript questions that come up in real frontend loops, with crisp answers.

TypeScript3 questions
Free
Interview PrepAug 29, 2026
CSS & Layout Interview Questions

The CSS questions that come up in real frontend loops, with crisp answers.

CSS3 questions
1–8 of 10

Posts

10 posts — newest first

PlaygroundsAug 29, 2026
Stopwatch Timer
vanilla
Free
PlaygroundsAug 29, 2026
Form Validation
vanilla
PlaygroundsAug 29, 2026
Tabs Component
vanilla
Join to unlock
PlaygroundsAug 29, 2026
Accordion Component
vanilla
Free
PlaygroundsAug 29, 2026
Fetch with Loading State
vanilla
PlaygroundsAug 29, 2026
Modal with Portal
vanilla
Join to unlock
PlaygroundsAug 29, 2026
Dark Mode Toggle
vanilla
Free
PlaygroundsAug 29, 2026
Debounced Search Box
vanilla
1–8 of 10

Posts

10 posts — newest first

BlogSep 22, 2026
Accessibility wins you can ship today

Accessibility wins you can ship today — lessons learned the hard way, distilled into something you can use today.

Join to unlock
BlogSep 22, 2026
CSS Grid patterns I reach for every week

CSS Grid patterns I reach for every week — lessons learned the hard way, distilled into something you can use today.

BlogSep 22, 2026
Debouncing vs throttling: a practical guide

Debouncing vs throttling: a practical guide — lessons learned the hard way, distilled into something you can use today.

Free
BlogSep 22, 2026
A pragmatic guide to React Server Components

A pragmatic guide to React Server Components — lessons learned the hard way, distilled into something you can use today.

Free
BlogSep 22, 2026
Performance budgets that actually stick

Performance budgets that actually stick — lessons learned the hard way, distilled into something you can use today.

Free
BlogSep 22, 2026
How the event loop really schedules your code

How the event loop really schedules your code — lessons learned the hard way, distilled into something you can use today.

Join to unlock
BlogSep 20, 2026
From REST to typed APIs: what changed for our team

From REST to typed APIs: what changed for our team — lessons learned the hard way, distilled into something you can use today.

BlogSep 18, 2026
Why I stopped using useEffect for data fetching

Why I stopped using useEffect for data fetching — lessons learned the hard way, distilled into something you can use today.

Free
1–8 of 10

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I share battle-tested frontend interview prep, hands-on tutorials, runnable playgrounds, and honest write-ups of real interview loops. Subscribe for all-access, or grab individual deep dives.

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