ruby unless ~= code example

Example 1: ruby unless

unless number.even?
  # runs if `number` is NOT even
else
  # runs if `number` is even
end

Example 2: ruby else if

x = 1
if x > 2
   puts "x is greater than 2"
elsif x <= 2 and x!=0
   puts "x is 1"
else
   puts "I can't guess the number"
end