[masterofmisc]

He asks the question "But should you use it for your large scale app development project?"

I thought that was literally the reason TypeScript came to be. Microsoft were having lots trouble wrangling Bing web app and internal MS devs wanted a tool to help catch the bugs!

I would say, if you are embarking on a large scale app, you most definitely want to include TypeScript from the start. It will pay dividends in the end.

[scrollaway]

It pays dividends long before the end.

My usual "time to 'oh thank you typescript'" is roughly 2 days from the beginning of the project.