Syntastic in Vim claims function might fail to return

Question

EDIT: Syntastic is configured to use JSLint

EDIT2: I am using JavascriptLint, not JSLint

On the below code syntastic warns function inside does not always return a value

function(){
 switch(age){
 case 1:
  return 'won';
 case 2:
  return 'too';
 case 3:
  return 'tree';
 default:
  throw 'wow man, you are old!';
  break; //technically redundant
 }
}

I realize default does not return a value, but the throw ends the execution. Is this a Syntastic error, or should I change my coding style? Should I put a return statement after throw?

Answer 1

Syntactic uses JSLint under the hood to check Javascript syntax.

JSLint is known to be overcautious in order to avoid errors. You can either ignore the message to your better judgement, or turn off this particular warning, or add a redundant return there.

Personally I prefer to satisfy JSLint's requirements over turning off warnings. Just make sure to add a //Satisfying JSlint comment near the return so other people will understand the redundancy.