Convert String value to Int.
Convert String to Int assuming base 8 (octal). No leading '0' is required.
Convert String to Int assuming base 16 (hexadecimal). No leading characters
are expected; input starting with "0x" (or any other out of range character)
will cause an Err return.
Convert String to Int assuming given radix. Radix can be any of
2..36. Leading zeroes are ignored. Valid characters are the alphanumerics:
those in the ASCII range [0-9a-zA-Z]. Case does not matter. For radixes beyond
16 the normal [A-F] range for hexadecimal is extended in the natural way. Any
invalid character results in a Err return. Any valid character outside of the
range defined by the radix also results in an Err. An Ok return means that the
entire input string was consumed. The empty string results in Ok 0
parseIntRadix 16 "DEADBEEF" = Ok 3735928559Possible Result.Err returns from the parseInt functions.
Convert String to Int assuming base 10.