// notes & learnings

Blog

02 February 3, 2026 · 4 min

Result Pattern in TypeScript: when your errors stop being a surprise

When a function can fail, let the type say so. Result Pattern in TypeScript: explicit errors, type-safe, and easy to test.

TypeScript
Patterns
Error Handling

aitorevi.dev/en/blog/result-pattern-typescript

Violet Y-shaped pipe splitting into a green checkmark envelope and a red X envelope

01 November 18, 2025 · 4 min

Mock 101: The Art of Testing, a Unique Experience at Nerdearla

Recap of our Mock 101 workshop at Nerdearla 2025: we taught dummies, stubs, spies, mocks, and fakes with practical katas in 6 programming languages.

Testing
Katas
Community

aitorevi.dev/en/blog/mock-101-nerdearla

Lean Mind team delivering the Mock 101: The Art of Testing workshop at Nerdearla 2025