Parse an integer value from the provided 'digits' string.
The string is inspected for a sign and 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.
A non-null 'ate' will return the number of characters used
to construct the returned value.
Parse an integer value from the provided 'digits' string.
The string is inspected for a sign and 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.
A non-null 'ate' will return the number of characters used to construct the returned value.