1. 1.1.3


    Creates a new integer value from the given string.

    init?(_ description: String)



    The ASCII representation of a number.


    The string passed as description may begin with a plus or minus sign character (+ or -), followed by one or more numeric digits (0-9).

    let x = Int("123")
    // x == 123

    If description is in an invalid format, or if the value it denotes in base 10 is not representable, the result is nil. For example, the following conversions result in nil:

    Int(" 100")                       // Includes whitespace
    Int("21-50")                      // Invalid format
    Int("ff6600")                     // Characters out of bounds
    Int("10000000000000000000000000") // Out of range