📰 Dev.to · Amit Kumar

I ported a Python library to Rust. My fuzzer was lying to me. ...

Every "port to Rust" post is the same shape: I rewrote it in Rust and it's faster. This one isn't. I...

Predict-the-output questions on + with arrays/objects, NaN equality, == vs ===, and the classic coercion traps that show up in JS / React / React Native intervi

Practical Notifee guide for local notifications in React Native — channels, permissions, foreground/background/killed handlers, progress bars, big pictures, and

A practical deep dive into choosing and optimizing list components in React Native — when ScrollView hurts, how FlatList/SectionList really recycle, and why Fla

Android-first guide to periodic sync with Headless JS and scheduled notifications with AlarmManager in React Native 0.86.

Clear guide to function declarations, expressions, arrow functions, methods, constructors, generators, async functions, and IIFEs — with differences, gotchas, a

50 Guess-the-Output challenges for React Native interviews — hoisting, closures, this, coercion, Promises, async/await, and the event loop. Pick A–D before you

Practical React Native security guide — secure storage, tokens, biometrics, HTTPS/SSL pinning, deep links, reverse engineering, root/jailbreak, logging, permiss

Deep dive into React Native hooks — what to use where, useState, useEffect, useRef, useMemo, useCallback, useReducer, Context, navigation & RN platform hooks —

A practical cheat sheet of package.json scripts, Metro, adb, xcrun, CocoaPods, clean rebuilds, release builds, and debugging commands every RN developer should

Build a scalable React Native navigation structure with bottom tabs, a custom drawer, nested stacks, a root modal route, and a reusable modal HOC.

100 interview-style JavaScript output challenges covering frequently asked and high-probability topics: hoisting, coercion, arrays, objects, closures, classes,

Part 3 of 3: 36 original JavaScript output questions on Promises, async/await, the event loop, modules, generators, and modern syntax.

Part 2 of 3: 36 original JavaScript output questions on arrays, objects, equality, coercion, this, classes, Symbols, and iterables.

Part 1 of 3: 36 original JavaScript output questions on hoisting, scope, closures, functions, and the Temporal Dead Zone.

50 senior React Native interview questions on project ownership, production incidents, performance, delivery, leadership, and truthful storytelling.

120 current-style React Native interview questions with concise answers on architecture, performance, security, native platforms, releases, and system design.

70 JavaScript code-output interview challenges covering scope, arrays, objects, functions, async behavior, and React Native reasoning.

75 React Native and JavaScript coding interview questions on arrays, strings, hooks, async patterns, lists, caching, and native modules.

191 output-based JavaScript interview questions on hoisting, arrays, objects, functions, conditions, closures, Promises, and the event loop.

159 senior React Native interview questions: coding, JavaScript output, production scenarios, and behavioral rounds.

140 React Native questions on performance, architecture, security, releases, system design, and practical coding.

200 React Native interview questions on navigation, state, APIs, performance, native modules, and New Architecture.