Adds one or more items to the end of an array.
my @animals = ("cat");
push(@animals, "mouse"); # ("cat", "mouse")
my @colors = ("red");
push(@colors, ("blue", "green")); # ("red", "blue", "green")Returns the number of elements in the array following the completed push.
my $color_count = push(@colors, ("yellow", "purple"));
say "There are $color_count colors in the updated array";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.