Deque.peekback
From OpenEUO
Calling Pattern
Call
local d = sl.deque() -- later local r = d.peekback()
Results
r is any type
Description
Calling peekback returns the value at the back of the queue, without actually removing it. If the queue is empty, peekback returns nil. Deque.back is a synonym for peekback.
Upon Error
Errors are reported and handled according to the operant error redirection mode.
