Perl 5 version documentation

push

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage
  • push ARRAY,LIST

    Treats ARRAY as a stack by appending the values of LIST to the end of ARRAY. The length of ARRAY increases by the length of LIST. Has the same effect as

    1.     for my $value (LIST) {
    2.         $ARRAY[++$#ARRAY] = $value;
    3.     }

    but is more efficient. Returns the number of elements in the array following the completed push.

    Starting with Perl 5.14, an experimental feature allowed push to take a scalar expression. This experiment has been deemed unsuccessful, and was removed as of Perl 5.24.