What is the difference between `class Foo<T>(val bar: T)` and `class Foo<T: Any>(val bar...

# getting-started

[codyoss]

What is the difference between class Foo<T>(val bar: T) and class Foo<T: Any>(val bar: T). I don’t understand what the : Any gets you…

[nwh]

It means that the type of T is a subtype of Any. That's useful because it means you can't use a nullable type (like Int?, for example)

[nwh]

If you have a collection of objects that are bounded with Any you know you will never have a null entry

[malone]

In the first case, the implicit type of T is Any?

[codyoss]

Thanks!