[Feature] Add support for "compileOnSave"

[ptusch]

Hello,

I'd love to have a feature called "compileOnSave". Currently, I have to launch a separate Terminal window and call tsc -w in my project and that's a bummer in a way.
tsconfig.json Allows IDEs to check for that attribute and act accordingly:

• current schema for tsconfig
• official docs

I know that atom-typescript supports it and it looks like WebStorm does to. I wonder how hard it would be to implement it. If it's easy enough, I'd try it anyway.

What are your thoughts on this?

[Aerijo]

This package is just an interface for the language server, which is currently the theia language server. It appears to have some sort of compile on save feature, but I'm not sure if it's working or just a placeholder.

I will probably look into this more given time, but it would help if anyone who knows more about this language server could explain what needs to be done. It is a feature I would like to see though.