Tracks

Full-Stack Interview Prep

AI Engineering Roadmap →

Machine Coding

Polyfills, utilities, async helpers and UI components — built live, step by step, the way the round is scored.

    25 chapters

    1. 01How to Approach the Machine Coding Round
    2. 02Polyfill: call, apply and bindhigh-yield
    3. 03Polyfill: map, filter and reducehigh-yield
    4. 04Polyfill: Promisehigh-yield
    5. 05Polyfill: Promise.all, allSettled, race and anyhigh-yield
    6. 06Polyfill: Array.flat
    7. 07Polyfill: Object.assign and Object.create
    8. 08Polyfill: the new operator and instanceof
    9. 09Debouncehigh-yield
    10. 10Throttlehigh-yield
    11. 11Deep Clonehigh-yield
    12. 12Deep Equal
    13. 13Curryhigh-yield
    14. 14Memoize
    15. 15Event Emitterhigh-yield
    16. 16Retry with Exponential Backoffhigh-yield
    17. 17Promise Pool (Concurrency Limit)high-yield
    18. 18Async Task Queue with Pause and Resume
    19. 19Sleep and Timeout Wrappers
    20. 20Autocomplete / Typeaheadhigh-yield
    21. 21Infinite Scrollhigh-yield
    22. 22Star Rating
    23. 23Nested File Treehigh-yield
    24. 24Accessible Tabs and Accordion
    25. 25Toast Notification Systemhigh-yield