Course of Raku / Advanced / Subroutines / Signatures / Exercises

Slurpy named arguments

Problem

Write a subroutine describe that takes a required positional name and then collects any number of named arguments into a slurpy hash (*%opts). It should return a string of the form name: key=value, key=value, ..., listing every option with its keys in alphabetical order.

Call it as describe('Anna', colour => 'red', size => 5) and print the result.

Example

The program prints:

Anna: colour=red, size=5

Solution

✅ See the solution

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