Returns the length of the number’s string representation.
0.string_length #=> 1 123.string_length #=> 3 -1.string_length #=> 2
# File lib/shenanigans/fixnum/string_length.rb, line 9 def string_length return 1 if self.zero? len = Math.log10(self.abs).floor.next self > 0 ? len : len.next end