Co-located Tests Scale Better
Co-locating test files next to TypeScript source code beats a centralized "tests" folder every time. Learn why co-location scales better in large TypeScript codebases and how it keeps your project navigable.
best practices
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Stop Type Drift with Linked Typing
Use keyof typeof to derive types from runtime objects. One source of truth, zero drift, and TypeScript catches mistakes at compile time.
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Why Your Cat Became a Dog (And TypeScript Finally Noticed)
Discover how JavaScript private fields change TypeScript from structural typing to nominal typing, creating hard boundaries between classes that look identical.
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How Intersection Types Replace Error Handling
Learn how to replace runtime validation with TypeScript intersection types for compile-time safety and cleaner code.
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Stop Committing Unformatted Code
Git hooks can automatically catch formatting and linting errors before they reach your repository. Learn how Lefthook makes this effortless with parallel execution and automatic fixes.