Hmm technically you don't need an IDE to make good use of Typescript. It works very well as a standalone compiler installed using npm, and you get static type checking etc. which is really the point of Typescript IMHO --- if you don't care for static typing you might as well use JS directly.
Sure, once you've got this you might as well want good auto-completion, refactorings, etc, but this also applies to any language that's not bound to one specific IDE (C++, for example, or Java).
Sure, once you've got this you might as well want good auto-completion, refactorings, etc, but this also applies to any language that's not bound to one specific IDE (C++, for example, or Java).