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Redux Toolkit in 2025 — Why Old Redux Hurt and How RTK Fixed It

19h ago · 9 min read · Hey everyone, Richa here! 👋 Day 8. Story time. I'm a junior dev on my first React project. The tech lead says "we use Redux." I open the codebase and there are folders called actions, reducers, ac

Zustand — The Modern Lightweight State Manager Every Senior Should Know

1d ago · 8 min read · Hey everyone, Richa here! 👋 Day 7. And today we're talking about the library that made me say — "wait, why did we ever do it any other way?" Zustand. When I came back to React after 2 years in Lit.j

Context API — What It's Good For and Where It Quietly Breaks Your App

3d ago · 9 min read · Hey everyone, Richa here! 👋 Day 6. Week 2 starts today — and we're going straight into the thing that causes the most confusion about React state management. Context API. I've seen it used as a glob

useMemo, useCallback, React.memo — The Real Rules for When to Use Them

4d ago · 9 min read · Hey everyone, Richa here! 👋 Day 5. Let's talk about the most over-used, misunderstood, "just wrap everything in it" hooks in React. useMemo. useCallback. React.memo. I used to add useCallback to eve

useEffect Done Right — The Hook That Causes More Bugs Than Any Other

5d ago · 10 min read · Hey everyone, Richa here! 👋 Day 4. And today we're talking about the hook I have a love-hate relationship with. useEffect. I've seen it cause infinite loops in production. I've seen it fetch the sam

How React Actually Works — And Why I Never Bothered to Learn It (Until Now)

Apr 17 · 9 min read · Hey everyone, Richa here! 👋 Okay. Day 1. Let's talk about something embarrassing. I have 3 years of React experience. I've shipped real apps to real users. I've reviewed code, led features, debugge

RPRishabh parmarreactinterviewquestionandanswewer.hashnode.dev

React Interview Questions and Answers: The Ultimate Guide for 2025

Jun 20, 2025 · 5 min read · If you're gearing up for a front-end or full-stack developer interview in 2025, chances are you'll face a solid round of questions on React. As one of the most in-demand JavaScript libraries for building user interfaces, React continues to dominate t...

BKBridgit Kaninibridgitkanini.hashnode.dev

React Interview Buzzwords: A Letter to My Past Self (and Maybe Yours Too)

May 29, 2025 · 11 min read · This one time in an interview, I confused the Virtual DOM (Document Object Model) with Data Object Modification. I could tell I’d made that blunder the moment the words left my mouth. My brain went, “Well, that’s not right,” and the interviewer just ...

TAThamizh Arasanwatermark.hashnode.dev

🧠 Debugging React Internals: Why I Started Cloning Functions and Objects (Seriously)

Apr 15, 2025 · 3 min read · “To understand the code, you must live in the code.”— A React explorer with console.log as his compass Where it all began... 🌱 When I decided to truly understand how React works under the hood — not just use it, but really get it — I didn’t know wh...

AKAnmol Kansalanmol-kansal.hashnode.dev

Creating a polyfill for useMemo in ReactJS

Mar 9, 2025 · 2 min read · In this post, we will learn how to implement a polyfill for useMemo in ReactJS React’s useMemo is an essential hook for performance optimization. It helps you memoize values so that expensive computations only run when necessary. But have you ever th...