You can return nothing by not typing anything as a returned object/variable.
ex: member function(): js server
If you include a
function(), the parser expects there to be a return type. So the above example will fail with error: `E no viable alternative at input ‘js server’``.
Here’s a comparison of two valid fields:
funcA: function() js server funcB: function() : int js server
funcA does not have a return type, and
funcB returns an integer.