shift
shift @array
Removes the first value of @
array
and
returns it, shortening the array by 1 and moving everything down.
If there are no elements in the array, the function returns the
undefined value. If @
array
is omitted, the function shifts
@ARGV
(in the main program), or
@_
(in subroutines). See also
unshift ,
push ,
pop ,
and splice .
The shift
and unshift
functions do the same thing to
the left end of an array that pop
and push
do to the right end.
52.14.39.59