That's because in this case the 'x' is acting as an operator which takes in a string on the left side, a number on the right side, and returns the string replicated as many times as the number.
When you flip them, it tries to treat the string as a number, which is a problem. So it returns undef or "", can't remember which right now and when you print that you get nothing. On Sat, Dec 29, 2012 at 10:42 AM, Om Prakash Singh <torque.in...@gmail.com>wrote: > Hi All, > > I am new to perl and while going through the chapters of Learning perl, i > just came through one excessive, while i was able to complete it, i just > came across something that didn't work and i couldn't find any explanation > for it. Would be great if i get some help in understanding this behavior. > > below is the code > > print "the string: "; > $string = <STDIN>; > print "the no.: "; > chomp($number = <STDIN>); > $result = $string x $number; > print "the result is:\n$result"; > > > in the above code when i use > $result = $string x $number; > i get the right result, i.e. strings printed on two lines. > > but, when i use > $result = $number x $string; > I don't get any output at all, just wondering why this happens, any help > would be highly appreciable. > > Regards, > Omps > -- Danny Gratzer
