// Knowledge base, coding katas, and mock interviews for frontend.
// Prep for interviews or just keep your skills sharp. Free.
Click to fix the bug
ERROR
FIXED
Console OutputYour code
Your code
screams for help
causes panic.
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.
~/jscriptiser/patches
- ❯Loading platform sections...
- ❯git commit -m "fix: career boost"
Uncaught ReferenceError: CareerGrowth is not definedat career.js:404
Closed by this patch
Warning: useEffect has missing dependency: 'DeepUnderstanding'at react_knowledge.tsx:12
Closed by this patch
Fatal Error: ImposterSyndrome caused stack overflowat interview_panic.ts:500
Closed by this patch
SyntaxError: Spaghetti code detected in productionat legacy_monolith.js:9999
Closed by this patch
Platform map
What's inside
Six sections — each covers a slice of interview prep or day-to-day frontend work. Sign in to access, no payment required.
No login needed
Frontend quiz
10 random questions from the bank — easy to hard. With explanations, progress, and attempt history.
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Knowledge base
Articles and theoretical questions on JavaScript, TypeScript, React, architecture, and the network layer. With code samples and difficulty navigation.
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Coding katas
Hands-on tasks in JavaScript and TypeScript. Editor + auto-tests + hints. From warm-up to interview level.
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Mock interviews
Real questions from Russian and international companies — with explanations, difficulty markers, and personal progress tracking.
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Progress & achievements
XP, levels, streaks, and achievements. Not gamification for its own sake — just a way to see where you got stuck.
No login needed
Telegram channel
Channel with breakdowns, interview mistakes, and notes. Sometimes — invitations to mock interviews or jams.
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Knowledge Base
