I have a MacBook Pro with OS X 10.8.2
Some time ago I installed Typescript and today I'd like to upgrade that installation to the latest version available (so far, v0.8.3).
I wrote this command from the terminal:
sudo npm install -g typescript
npm http GET https://registry.npmjs.org/typescript
npm http 304 https://registry.npmjs.org/typescript
/usr/local/bin/tsc -> /usr/local/lib/node_modules/typescript/bin/tsc
I think I have found the problem: I just realised that I was using an old version of npm. I have upgraded npm to the latest version, then re-installed typescript and now I have the latest version of typescript installed on my computer.