The parseInt() function can also be used
to parse numbers of a different base than decimals.
To do that,
we can pass the base number as the second parameter to parseInt().
In the example given below,
the string contains a binary number.
To convert this string into a decimal number,
we pass the base of binary numbers - 2
as the second parameter to parseInt().
In the example given below,
the string contains a hexadecimal number
and
we pass the base number of hexadecimals - 16
as the second parameter to parseInt(),
in order to get the parsed integer value.