This is a great overview of some deep parts of TS https://github.com/basarat/typescript-book https://github.com/basarat/typescript-book From personal experien

This is a great overview of some deep parts of TS https://github.com/basarat/typescript-book https://github.com/basarat/typescript-book From personal experience the biggest issue to overcome when migrating from java etc. was to embrace prototype based OOP and the functional nature of JS (not in theoretical sense), where class keyword is just a syntax sugar over function with closures etc. Nothing looks uglier than TS/JS code written by experienced java/C# programmer with no js experience :)