convert a string : Convert to Integer « Number « Ruby






  1. Ruby
  2. Number
  3. Convert to Integer

convert a string


puts Integer("256")








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1.convert a floating-point number
2.convert a binary number from a string
3.convert an octal number
4.convert a hexadecimal number
5.convert a character code
6.Converting Between Classes
7.ArgumentError: invalid value for Integer: "1001 nights"
8.Converting Between Characters and Values
9.Parsing A Number From A String
10.to_i gives the integer version of an object, and to_f gives the float version
11.Convert string to integer by parameter
12.Convert string to number with non number string
13.Number parser by regular expressons