How to check “instanceof ” class in kotlin?

Question

In kotlin class, I have method parameter as object (See kotlin doc here ) for class type T. As object I am passing different classes when I am calling metho

Answer 1

Use is.

if (myInstance is String) { ... }

or the reverse !is

if (myInstance !is String) { ... }

Answer 2

You can use is:

class B
val a: A = A()
if (a is A) { /* do something */ }
when (a) {
  someValue -> { /* do something */ }
  is B -> { /* do something */ }
  else -> { /* do something */ }
}