The TypeScript project was led by Anders Hejlsberg, the father of Microsoft's C# language.Hejlsberg spoke with eWEEK about the 1.0 release.
Indeed, TypeScript 2.0 delivers several new features over even the 1.8 release, Microsoft said. New features include simplified declaration file acquisition, non-nullable types, control flow analyzed types and the read-only modifier. Other new features include tagged unions, the new never type, "this" types for functions and glob support in tsconfig.
Microsoft said that last month alone, TypeScript had more than 2 million downloads compared with just 275,000 in the same month last year.
"In addition, we've had tremendous adoption of the TypeScript nightly builds with over 2,000 users participating in discussion on GitHub and 1,500 users logging issues. We've also accepted PRs from over 150 users, ranging from bug fixes to prototypes and major features," the TypeScript team blog said.
Moreover, DefinitelyTyped, the repository for high-quality TypeScript type definitions, is another example of the TypeScript community growing and maturing.