does anyone know, if kotlin has extension function like this: ```any.takeIf<Int>()```

# getting-started

[Peter]

does anyone know, if kotlin has extension function like this:

any.takeIf<Int>()

[Youssef Shoaib [MOD]]

You can easily roll your own:

inline fun <reified T> Any.takeIf(): T? = if (this is T) this else null

[Ruckus]

any as? Int
https://kotlinlang.org/docs/typecasts.html#safe-nullable-cast-operator

[Peter]

Hm, maybe takeIf mislead me a bit. I guess as? is perfectly ok. I'm using it like so: (any as? User)?.id
I guess doing any.takeIf<User>()?.id doesn't really make it more readable.

[Gleb Minaev]

I opened corresponding issue some time ago. Because I needed the extension for chained calls. But it was closed in favour of future improved contracts that will infer the result type in .takeIf { it is MyType }.