All Posts
20 interview guides for developers
System Design for Frontend Developers
Design a autocomplete, infinite scroll, or news feed — framework interviewers love.
Behavioral Interview Tips for Developers
STAR method, common questions, and how to stand out in technical hiring.
Node.js Event Loop & Streams
How Node differs from browser JS, and why streams matter in backend interviews.
REST vs GraphQL: Interview Comparison
Trade-offs, when to pick each, and how to discuss API design in interviews.
CSS Flexbox vs Grid: Interview Guide
Layout questions, centering tricks, and when to reach for each system.
Web Performance: Frontend Interview Topics
Core Web Vitals, lazy loading, bundle optimization — metrics that matter.
TypeScript Generics for Interviews
Write generic functions, constraints, and utility types confidently in interviews.
Type Narrowing & Type Guards
typeof, instanceof, discriminated unions — handle unknown types like a pro.
React Hooks: Top Interview Questions
useState, useEffect, useMemo, useCallback, useRef — rules and real-world answers.
Next.js App Router vs Pages Router
Know when to use each, how routing differs, and what interviewers ask in 2026.
Virtual DOM & Reconciliation
How React updates the UI efficiently — diffing algorithm and keys explained.
SSR, SSG, ISR & CSR in Next.js
Rendering strategies demystified — when to use each and how to explain trade-offs.
State Management: When to Use What
Local state, Context, Zustand, Redux — pick the right tool and explain why.
Server Components vs Client Components
The most important Next.js concept since App Router — explained for interviews.
JavaScript Closures: The #1 Interview Question
Master closures with real interview questions, code examples, and the mental model interviewers expect.
Next.js Data Fetching Patterns
fetch caching, revalidation, parallel routes, and the patterns senior devs use.
The JavaScript Event Loop Explained
Understand call stack, task queue, microtasks, and ace the classic async output questions.
Promises vs Async/Await: Interview Deep Dive
From Promise.all to error handling — everything you need for senior-level async interviews.
Prototypes & Inheritance in JavaScript
Prototype chain, class syntax, and the questions that separate mid from senior developers.
Hoisting, TDZ & Scope: Interview Essentials
var vs let vs const, temporal dead zone, and scope chain questions explained clearly.