Engineering
Stop Reaching for any: Narrowing unknown in TypeScript
Why unknown is the type-safe replacement for any, and the narrowing patterns that make it practical in real code.
·4 min read
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Engineering
Software craft & practices · 55 articles · Page 1 of 5
Engineering
Cancellation Patterns in TypeScript: Taming AbortController
Why most async TypeScript code ignores cancellation entirely, and how to build composable, leak-free cancellation with AbortController.
·4 min read
Engineering
Template Literal Types: Expressive, Type-Safe APIs
Use TypeScript template literal types to encode event names, route patterns and permission sets in the type system — no runtime checks, no string drift.
·4 min read
Engineering
TypeScript satisfies: Type Safety Without Losing Inference
The satisfies operator validates that a value matches a type while preserving literal inference — why that distinction matters and where to apply it.
·4 min read
Engineering
TypeScript Branded Types: Compile-Time Domain Modeling
Eliminate a whole class of runtime bugs by teaching TypeScript the difference between a UserId and an OrderId — even when both are strings underneath.
·5 min read
Engineering
Runtime Type Safety with Zod: Validating at Every Boundary
TypeScript's type system stops at compile time — Zod closes the gap by validating data at the runtime boundaries where it actually matters.
·4 min read
Engineering
Error Handling in TypeScript: Patterns That Scale
Move beyond try-catch soup: discriminated unions, Result types, and error boundaries that make TypeScript codebases more reliable and maintainable.
·3 min read
Engineering
Testing Strategies for Modern Web Apps: What Actually Works
A practical guide to a testing strategy that catches real bugs: unit, integration and end-to-end with Vitest, Testing Library and Playwright.
·6 min read
Engineering
TypeScript Patterns for Large Codebases
Advanced TypeScript patterns I use daily: discriminated unions, branded types, the builder pattern and utility types that keep large codebases safe.
·3 min read
Engineering
Dependency Injection Patterns in TypeScript Applications
Dependency injection in TypeScript with constructor injection, factory functions, DI containers and module composition — testable, without framework lock-in.
·4 min read
Engineering
Debugging Production Incidents: A Systematic Approach
A battle-tested framework for diagnosing and resolving production incidents quickly — from first alert to root cause analysis and prevention.
·4 min read
Engineering
Monorepo Git Workflows: Trunk-Based Development at Scale
Trunk-based development in monorepos: code ownership, selective CI triggers, merge queues and branch protection for hundreds of developers in one repo.
·4 min read