Ruby < 2.7
[1, 2, 3, 4, 5].map { |x| x * 7 }
Ruby 2.7
[1, 2, 3, 4, 5].map { @1 * 7 }
Ruby 2.7 - New Syntax To Refer Block Arguments
Published: at 11:00 PM
Ruby < 2.7
[1, 2, 3, 4, 5].map { |x| x * 7 }
Ruby 2.7
[1, 2, 3, 4, 5].map { @1 * 7 }