“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
Best seller
Frontend Machine
Coding, decoded
Clear your next frontend machine coding interview with practical React projects, reusable patterns, and the confidence to build under pressure.
By Himanshu Shekhar · frontend mentor
13+
course modules
30
focused lessons
₹999
one-time access
20%
current saving
What you’ll learn
A practical path from blank editor to interview-ready build.
0 1
Master machine-coding rounds
Build complex frontend challenges within the time and ambiguity of a real interview.
0 2
Build production-ready components
Create scalable, modular React components with clean architecture and reusable patterns.
0 3
Solve the patterns companies ask
Practice modals, pagination, autocomplete, infinite scroll, carousels, and more.
0 4
Write clean, fast code
Improve state management, performance decisions, and the way you explain your approach.
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 Watch
Drag & drop, progress, retry, and validation.
- Chunked uploads
- Progress reporting
- Retry on failure
12Calculator from scratch System
Sorting, filtering, virtualization, and column resizing.
- Virtualization
- Multi-column sort
- Sticky headers
13Comment SystemAsked in Walmart · Google
Sorting, filtering, virtualization, and column resizing.
- Virtualization
- Multi-column sort
- Sticky headers
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.
Student feedback
What learners say after clearing their rounds.
Real words from students who used these patterns to land frontend offers.
“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
Enroll nowOne-time payment · lifetime access