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kotlinlang

does anyone know, if kotlin has extension function like this:
```any.takeIf&lt;Int&gt;()```

You can easily roll your own:
```inline fun &lt;reified T&gt; Any.takeIf(): T? = if (this is T) this else null```

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

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&lt;User&gt;()?.id` doesn't really make it more readable.

I opened <https://youtrack.jetbrains.com/issue/KT-55934/takeIfType-extension-type-checking-alternative-of-takeIf|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 }`.