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Nov 17, 2020
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Update generic-classes.md #1817

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3 changes: 2 additions & 1 deletion _tour/generic-classes.md
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Expand Up @@ -17,7 +17,8 @@ Generic classes take a type as a parameter within square brackets `[]`. One conv
```tut
class Stack[A] {
private var elements: List[A] = Nil
def push(x: A) { elements = x :: elements }
def push(x: A): Unit =
elements = x :: elements
def peek: A = elements.head
def pop(): A = {
val currentTop = peek
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