Abstract constructor type in TypeScript

Question

The type signature for a non-abstract class (non-abstract constructor function) in TypeScript is the following:

declare type ConstructorFunction = new (...ar         


        

Answer 1

Having the same problem. I guess, an essence of abstract class constructor signature is an absense of new ( ... ) : X thingy in its declaration. That's why it can be declared explicitly.

However. You can do this, and it will compile.

var UtilityClass: typeof Utilities  = Utilities;

typeof Something is a nice way to reference constructor types, however, it cannot be extended.

And in any case you can do thing like this:

var UtilityClass: ConstructorFunction =  Utilities;