December 28, 2025
What is React Testing Library and How it Works
Learn what React Testing Library is, the tools it's built on—DOM Testing Library, Jest, jest-dom, and user-event—and how they all work together to help you test React components.
Blog
Posts on full-stack web development.
December 27, 2025
Spy vs Stub vs Mock
Learn the differences between spies, stubs, and mocks — the three types of test doubles that help you write isolated, reliable tests
December 25, 2025
PostgreSQL Indexes: A Hands-On Guide for Application Developers
Understand PostgreSQL indexes through hands-on examples. Learn to read execution plans, decide what columns to index, and avoid common pitfalls that make PostgreSQL ignore your indexes.
December 23, 2025
How PostgreSQL Transactions Work
A deep dive into PostgreSQL transactions covering implicit and explicit transactions, and the four isolation levels: Read Uncommitted, Read Committed, Repeatable Read, and Serializable.
December 20, 2025
How to Ignore TypeScript Errors
Learn how to suppress TypeScript errors using @ts-ignore, @ts-expect-error, and @ts-nocheck directives.