TypeScript and Flow are similar yet different. Both provide gradual static typing capabilities and other non-standard JavaScript features.

Disclaimer: this article assumes intermediate knowledge of both TypeScript and React. Concepts you should be familiar with include Higher Order Components and utility TypeScript types such as Pick<T, K> and Omit<T, K>. A few we... (more…)

Notes on picking between polymorphism and discriminated unions when writing typescript... (more…)

Learn programming tools like JavaScript, TypeScript, SQL, and regular expressions fast. Interactive lessons with real code examples. (more…)

Last week was the 5th anniversary of the launch of TypeScript, and I had the opportunity to go back to visit Anders and the team for the… (more…)