TypeScript4 min read
ESM vs CJS in TypeScript (Interop Without Tears)
Understand what TypeScript emits vs what Node runs, and how to avoid the common import/export traps in real codebases.
#JavaScript#Modules
Mar 01, 2026Practice
Practice
Frontend interview articles
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103 articles · page 5 of 12
TypeScript2 min read
Type-Level Testing & API Design Patterns
How to validate TypeScript types, design safer APIs, and avoid unsafe assertions—interview-ready patterns.
#Interviews
Feb 08, 2026Practice
TypeScript2 min read
Advanced Generics: Overloads, Inference Tricks, and Variance
Interview-focused advanced generics: overloads, inference patterns, variance basics, and designing ergonomic typed APIs.
#Generics#Interviews
Feb 08, 2026Practice
TypeScript1 min read
Mapped Types, keyof, and Template Literal Types (Interview-Ready)
How keyof + mapped types work, and how template literal types unlock powerful typed APIs.
#Generics#Interviews
Feb 08, 2026Practice
TypeScript1 min read
Typing React Components in TypeScript (Practical Patterns)
Props, children, event handlers, generics in components, and common TS + React pitfalls interviewers ask about.
#React#Interviews
Feb 08, 2026Practice
TypeScript1 min read
Enums vs Union Types (and const enums)
When to use enums, when to prefer string unions, and what const enums change.
#Interviews
Feb 08, 2026Practice
TypeScript1 min read
tsconfig.json: The Settings That Matter
A practical guide to TS compiler options interviewers ask about: strict, noImplicitAny, lib, moduleResolution, jsx, and incremental builds.
#Interviews
Feb 08, 2026Practice
TypeScript4 min read
TypeScript Declaration Merging: Examples & Common Errors
Learn TypeScript declaration merging with working interface and module augmentation examples, common compiler errors, and an interview exercise.
#Interviews
Feb 08, 2026Practice
TypeScript1 min read
Conditional Types + infer (Interview Essentials)
Understand conditional types, infer, and how TypeScript extracts types from functions/promises/arrays.
#Generics#Interviews
Feb 08, 2026Practice