Deque.pushfront
From OpenEUO
Calling Pattern
Call
local d = sl.deque() -- later local r = d.pushfront(a)
Args
a is any type but nil
Results
r is any type
Description
Calling pushfront adds a value to the front of the queue. Use null in lieu of nil for nil values. Pushfront returns true upon success. Deque.push is a synonym for pushfront.
Upon Error
Errors are reported and handled according to the operant error redirection mode.
