JavaScript Deep Dive + React Review (Day-5)

 JavaScript & React – Interview Prep Mode

Today was all about preparing for frontend interviews, and I focused heavily on reviewing core JavaScript and React concepts from the shared 150+ question set.

What I Covered:

JavaScript Topics:

  • Completed all JS questions from the set

  • Focused particularly on:

    • Promises & Callback functions

    • Closures and how they work under the hood

    • Async/Await and handling asynchronous logic

These topics were a bit tricky at times, but revisiting them helped me gain more confidence and clarity.

React Topics (Partially Covered):

  • Reviewed around 90 questions

  • Focused on core concepts:

    • useState, useEffect, useMemo

    • Type-related questions and common hook usage

I still need to complete the remaining React questions, but the progress so far has been good i learnt more about these topics than i knew before. 

What I Learned:

  • Revisited how closures work and why they’re important in functional JS.

  • Understood async flow better and how it overpowers Promises by making code cleaner and more readable

  • Refreshed usage of React hooks like useState and useEffect, and how they help optimize performance.

  • Revisited how React Components makes the project for readable and helps in increasing the reusability.

Gracias:

Grateful for the structured question set — it really helps in making revision focused.
Also thankful to my mentor for feedback that motivates me to keep improving!

~Sanya

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