Interface Stack

stack.go:23–35

Stack is a LIFO list

type (
	// Stack is a LIFO list
	Stack interface {
		// length of stack
		Len() int

		// add an item to the stack
		Push(interface{})

		// remove an item from the stack
		Pop() interface{}

		// return (but not remove) the top item on the stack
		Peek() interface{}
	}
)

// NewStack creates a new stack