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CrackFrontend Machine
Coding Interview

Clear your next frontend machine coding interview with practical React projects, reusable patterns, and the confidence to build under pressure.

By Himanshu Shekhar · Frontend Lead at Genpact

Your offer

20% off
₹999₹2,000
  • 13+ Module
  • React, DOM, CSS, and JavaScript patterns
  • Asked in Myntra, Paytm, Accenutre, Razorpay, IBM ,etc
  • Interview-focused practice challenges
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Why this works

Stop guessing what interviewers want.

Instead of memorizing isolated solutions, you’ll learn a repeatable way to reason about requirements, choose an approach, and ship a clean interface when the clock is running.

  • Architecture decisions
  • State and data flow
  • Performance trade-offs
  • Clear code walkthroughs

Course syllabus

13+ Module · 30 lessons

Build the patterns one project at a time. Tap a module to expand the lesson outline.

01Dynamic modalAsked in Myntra · Accenture+

Component design and state management from scratch.

  • Anatomy of a modal
  • Focus trap & a11y
  • Portal-based rendering
02Pagination systemAsked in Gojek · Walmart · Flipkart+

Data fetching, page navigation, edge cases, and reusable UI

  • Server vs client paging
  • Page-size controls
  • Empty & error states
03Autocomplete search with debounceAsked in Paytm · Accenture · IBM+

Filtering, API integration, debounce, and loading states.

  • Debounce vs throttle
  • Highlighting matches
  • Keyboard navigation
04Infinite scroll with Intersection ObserverAsked in Microsoft · Nagarro+

Intersection Observer, API pagination, and duplicate requests.

  • Intersection Observer API
  • Deduplication strategy
  • Scroll restoration
05Dynamic Image carouselAsked in Genpact · Target+

Navigation, autoplay, indicators, and responsive layouts.

  • Touch & swipe handling
  • Autoplay with pause-on-hover
  • Indicator patterns
06Advanced todo listAsked in TCS · Wipro · Accenture+

CRUD operations, filtering, state management, and architecture.

  • Optimistic updates
  • Drag & drop reordering
  • Persistence patterns
07Tabs & accordionsAsked in Adobe · Oracle+

Accessible tabs, deep linking, and keyboard support.

  • ARIA roles
  • URL-synced state
  • Animation choreography
08Password GeneratorAsked in Razorpay · Freshworks+

Field validation, dynamic schemas, and error messaging.

  • Schema-driven UI
  • Async validation
  • Field-level errors
09Toast & notification systemAsked in Flipkart · Swiggy+

Queueing, stacking, and dismissable UI patterns.

  • Notification queues
  • Stacking & positioning
  • Auto-dismiss timing
10Star ratings widgetAsked in CRED · Paytm+

Hover states, half-star precision, and form integration.

  • Half-star precision
  • Keyboard ratings
  • Read-only displays
11Stop WatchAsked in IBM · Fresherwok+

Drag & drop, progress, retry, and validation.

  • Chunked uploads
  • Progress reporting
  • Retry on failure
12Calculator from scratch SystemAsked in Genpact · Wipro +

    13Comment SystemAsked in Walmart · Google+

      Portrait of Himanshu Shekhar

      About the author

      Himanshu Shekhar

      Course author · frontend mentor

      Software engineer focused on frontend craft and interview preparation. I built this course to help you stop memorizing solutions and start reasoning about frontend problems the way interviewers actually evaluate them — component design, state flow, performance, and clear communication under time pressure.

      Connect with me

      Student feedback

      What learners say after clearing their rounds.

      Real words from students who used these patterns to land frontend offers.

      “The machine-coding drills were exactly what my interviewers asked. I walked into rounds calmer and shipped cleaner components under time pressure.”

      AS

      Aarav Sharma

      Frontend Engineer · cleared Razorpay interview

      “Pagination and infinite-scroll modules finally made sense. The step-by-step patterns saved me weeks of trial and error during my prep.”

      PV

      Priya Verma

      SDE-II · cleared Flipkart interview

      “Loved the architecture-first approach. I stopped memorizing solutions and started reasoning about edge cases the way senior engineers do.”

      RI

      Rohit Iyer

      Frontend Engineer · cleared Microsoft interview

      “Modal and form-builder lessons were gold. I rebuilt both from scratch during the interview and walked out with an offer.”

      NK

      Neha Kapoor

      Frontend Engineer · cleared Adobe interview

      “The rubric-based review drills taught me how to narrate my approach. Interviewers specifically called out my clarity.”

      KM

      Kunal Mehta

      SDE-I · cleared Paytm interview

      “Auto-complete and infinite scroll finally clicked for me. The lessons on debouncing and dedupe alone were worth the price.”

      IR

      Ishita Rao

      Frontend Engineer · cleared Swiggy interview

      Questions, answered

      Before you enroll

      What does the course cover?+

      The course focuses on building common React applications requested in technical interviews, covering component architecture, state management, and efficient UI implementation.

      Is this suitable for beginners in React?+

      A foundational understanding of React is recommended so you can focus on the interview patterns, architecture, and execution speed covered in the lessons.

      Which interview patterns are included?+

      The syllabus includes prompts based on patterns from companies such as Paytm, Oracle, Accenture, Adobe, Myntra, Flipkart, Microsoft, and more.

      Do I get source code for the projects?+

      Yes. The course includes working solutions for the projects so you can study the implementation and reuse the approach in future interviews.

      Limited-time offer

      Walk into your next round prepared.

      Get access to the Frontend Machine Coding course by Himanshu Shekhar.

      ₹999₹2,000
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      One-time payment · lifetime access

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