x
Repeats a string a given number of times.
Pops the repeat count (right operand) and the string (left operand)
from the stack. Returns a new string consisting of the left operand
concatenated with itself COUNT times. A count of zero or less
produces an empty string. Inf and NaN counts are treated as
zero (matching perl5).
Synopsis
$line = '-' x 80; # 80 dashes
$pad = ' ' x $width;
$s = 'ab' x 3; # "ababab"