RosettaCodeData/Task/Stack/Crystal/stack.cr

stack = [] of Int32
# push
stack.push 10
stack << 10

# pop
var = stack.pop

# empty
flag = stack.empty?

# top / peek
var = stack.last
Initial data commit 2023-07-01 11:58:00 -04:00			`stack = [] of Int32`
Data update 2026-02-01 16:33:20 -08:00			`# push`
			`stack.push 10`
			`stack << 10`
Initial data commit 2023-07-01 11:58:00 -04:00
Data update 2026-02-01 16:33:20 -08:00			`# pop`
			`var = stack.pop`

			`# empty`
			`flag = stack.empty?`

			`# top / peek`
			`var = stack.last`