Archive for the Ruby Category

• Easily compare a variable with multiple values - May 27th, 2009

  I often forget this simple little trick for comparing multiple values against a single variable.
  Instead of
  var = 2
  if var == 1 || var == 2 || var == 3
    puts "yes"
  end
  #=> "yes"
  You can do the following
  var = 2
  if [1,2,3].include?(var)
    puts "yes"
  end
  #=> "yes"