@a=(1,2,3,4);
push1(\@a,5);
print @a;

sub push1{
$ref =shift;
@a = @$ref;
$s=shift;
$len=scalar @a;
$a[$len] =$s;
return \@a;
}

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The above code . i am writing push function. I passed @a as a reference and i add 5 at end of the array. i print @a in main program. because i am passing reference. Then In actual push statement(push(@a,5)),without using reference,how its work?

In reply to technique of push by saranperl

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