Parse an unsignedinteger value from the provided 'digits' string.
The string is inspected for an optional radix prefix. A
radix may be provided as an argument instead, whereupon
it must match the prefix (where present). When radix is
set to zero, conversion will default to decimal.
Parse an unsignedinteger value from the provided 'digits' string.
The string is inspected for an optional radix prefix. A radix may be provided as an argument instead, whereupon it must match the prefix (where present). When radix is set to zero, conversion will default to decimal.