Perl 5 version 14.3 documentation
pop
- pop EXPR
- pop
Pops and returns the last value of the array, shortening the array by one element.
Returns the undefined value if the array is empty, although this may also happen at other times. If ARRAY is omitted, pops the
@ARGV
array in the main program, but the@_
array in subroutines, just likeshift
.Starting with Perl 5.14,
pop
can take a scalar EXPR, which must hold a reference to an unblessed array. The argument will be dereferenced automatically. This aspect ofpop
is considered highly experimental. The exact behaviour may change in a future version of Perl.