dart - Null aware function invocation operator

Question

In the same way we can have

nullableClassInstance?.method(blah)

Is there a way to do

nullableFunctionInstance?(blah)

In other words, is there an operator that checks whether a function instance is not null, if so, invoke the function all in one line?

Answer 1

Using the call method, you can achieve what you want with:

nullableFunctionInstance?.call(blah)

There's also the apply method if you want to pass arguments.