Convert to integer Ruby

To do this safely, use Integer(value):

Integer("blah blah") # => ArgumentError!
Integer("5") # => 5

To do this unsafely, use to_i:

"5abc".to_i # => 5

See ruby - Strictly convert string to integer (or nil) - Stack Overflow See Class: Integer (Ruby 2.2.3) See module Kernel - RDoc Documentation