// Knowledge base, coding katas, and mock interviews for frontend.
// Prep for interviews or just keep your skills sharp. Free.

The platform fills four common gaps in interview prep. Each patch is a separate section inside: quiz, knowledge base, mock interviews, coding katas.
Scroll on — patches install themselves: each error on the right turns into the section that closes it.
Uncaught ReferenceError: CareerGrowth is not definedat career.js:404
Warning: useEffect has missing dependency: 'DeepUnderstanding'at react_knowledge.tsx:12
Fatal Error: ImposterSyndrome caused stack overflowat interview_panic.ts:500
SyntaxError: Spaghetti code detected in productionat legacy_monolith.js:9999
Six sections — each covers a slice of interview prep or day-to-day frontend work. Sign in to access, no payment required.
10 random questions from the bank — easy to hard. With explanations, progress, and attempt history.
Articles and theoretical questions on JavaScript, TypeScript, React, architecture, and the network layer. With code samples and difficulty navigation.
Hands-on tasks in JavaScript and TypeScript. Editor + auto-tests + hints. From warm-up to interview level.
Real questions from Russian and international companies — with explanations, difficulty markers, and personal progress tracking.
XP, levels, streaks, and achievements. Not gamification for its own sake — just a way to see where you got stuck.
Channel with breakdowns, interview mistakes, and notes. Sometimes — invitations to mock interviews or jams.
Free for everyone who signs in. Consultations are separate, on request.
Knowledge base, coding katas, mock interviews, and a quiz. Access after sign-in.
No timers, no limits
Sign up with email, Google or Telegram
Case review, code review, mock interview, or test-task help.
45 minutes · fixed rate
Fill out the form below — I'll reach out on Telegram
The platform exists so I can train myself and keep my notes tidy. I share it for free. Consultations are separate, one-off, on request. No subscriptions, no contracts, no fixed terms.
Talk to me
One-off frontend consultation — 2000 ₽ ($25) for 45 minutes. Case review, code review, mock interview, or test-task help. No subscriptions, no contracts.
45 minutes. Zoom or Google Meet. No fluff.
What we can talk about
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