Course of Raku / Advanced / More about built-in types / Integers / Exercises / Hex to decimal

Solution: Hex to decimal

Here is a possible solution to the task.

Code

my $n = :16<1A>;

say $n;
say $n.base(16);

🦋 You can find the source code in the file hex-to-decimal.raku.

Output

26
1A

Comments

The radix form :16<1A> reads 1A as a base-16 number, which equals 1 × 16 + 10 = 26. The variable $n now holds the plain integer.
$n.base(16) converts that integer back to a base-16 string, giving 1A again — confirming that reading a base and printing in a base are inverse operations.

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