Callback functions in TypeScript

Question

I'm just getting started with Angular 2 and TypeScript and I can't seem to figure out how to use callback functions, I know this may be a silly question but given this regular javascript code:

someOnject.doSomething('dsadsaks', function(data){
      console.log(data);
});

What is the equivalent in TypeScript?

Answer 1

The same code works in TypeScript. Alternatively you can use

someOnject.doSomething('dsadsaks', data => {
  console.log(data);
});

The difference is that in the 2nd version this. would refer to the class surrounding the code.