Machine Coding Interviews

machine.md

Frontend Interviews

• One of the round is machine coding interview round
• Some companies take machine coding only in Vanialla JS, HTML & JS. (Uber)
• While other takes for the tech stack you are being hired for

What can be asked to build in machine coding round of interviews?

• Can be asked any type of app
• TODO list
• Comment engine
• E-comm website
• Trello
• Chatbot

Toughest part of machine coding round of interviews?

• Time Management
  • Whole app in 1-2 hrs
  • Interviewer is watching
  • Feels like pressure
  • To avoid pressure - Practice before interview
  • In the interview - Planning will help

Questions to ask interviewer after getting the problem statement?

• Requirements Clarification (5 minutes)
  • Discuss features are you going to develop
  • Tech Stack
    • Tell whether you are going to use TS or JS
    • CSS library for quick - Tailwind
    • Discuss about what are you using UI layer
    • Discuss about Data Layer
      • Redux for data Management
      • Context API

    • You should have a justification for the stack you are choosing

    • Library for Forms - formik
    • Routing library - react-router-dom
    • bundler - webpack/parcel
    • Testing library
    • Discuss things, but the expectation is not to cover everything. For Ex: its good to discuss about test cases but you are not expected to write them
• Planning (5 minutes)
  • Low Level Design, prepare a UI layout
    • UI
    • Structure
    • Data flow
    • workflow

  • Spend time in planning, you will write better code

  • Can also discuss different components
• Execution
  • Create a new project using npx create-react-app <package-name>
  • use rafce emmet shortcut to create a new component
  • Focus on functionality not on UI
  • Ask interviewer for API/hardcoded data