Ruby/Number/nonzero
Материал из Wiki.crossplatform.ru
Содержание |
If it is a nonzero
op = 2 if op.nonzero? # is it nonzero? puts 12 / op else puts "Can"t divide by zero." end
If it is not a zero, then
op = 0 if !op.zero? # not a zero? puts 12 / op else puts "Can"t divide by zero." end
Is it a nonzero
op = 0 op.nonzero? # => false
Is it a zero
op = 0 op.zero? # => true
