Next TypeScript release, due February 25, will support a limited form of checking against conditional and indexed acces types in return statements.

Less than two weeks after publishing the TypeScript 2.8 Release Candidate, Microsoft has officially launched it into general availability, bringing conditional types and more.

Microsoft's open-source programming language TypeScript – the alter ego of JavaScript but with a type system – turns 10 years old this December. It's grown to become a go-to language for ...