How do I pass a class as a function parameter?

[Mrooze-zeng]

Hi guys, I am new to dart. Can you help me how to pass the class as a function parameter?
For example, the code in Javascript can be written like this:

class MyCls{
  hello(){}
}

function myFun(cls){
  return new cls();
}

myFun(MyCls);

but how do I pass a class as a function parameter in dart?

[mraleph]

You can't pass a class as a function in Dart, because classes are not functions.

Right now you need to explicitly create a closure:

class MyCls {
}

myFun(maker){
  return maker();
}

myFun(() => MyCls());

Though there are some outstanding feature requests for some sort of constructor tear-off syntax (e.g. dart-lang/language#216 and dart-lang/language#691).