Get started with TypeScript and CRA2

[nuthinking]

Adding --typescript didn't create a typescript project, neither added the typescript module. Adding typescript myself created the tsconfig file but then didn't compile with an error similar to this: microsoft/TypeScript#16772

What's the right approach to use TS with CRA2? Exciting to see TS and NodeSass natively supported!

[Nothing-Works]

npx create-react-app my-project --typescript just works fine for me. I got all .ts files instead of .js files.

[nuthinking]

I don't

[iansu]

npx is probably caching an older version of Create React App. There's a similar issue (with a solution) here: #5939 (comment)

[brunolemos]

Duplicated of #5853

Please try the solution there and if it doesn't work please post the output of npx create-react-app --version. Like @iansu said, this is usually a npx caching issue.

[nuthinking]

I guess the issue was that I had installed it globally (long time ago). Using temporary versions with npx is way better! Still updates take ages. Will have to wait for #5903 before considering a switch.