Course of Raku / Functional, concurrent, reactive, and web programming / Functional programming / Iterators / Exercises / Gather the cubes

Solution: Gather the cubes

Here is a possible solution to the task.

Code

my @cubes = gather {
    take $_ ** 3 for 1..4;
}

say @cubes;

🦋 You can find the source code in the file gather-squares.raku.

Output

[1 8 27 64]

Comments

1. The take runs once for each number, contributing its cube ($_ ** 3).

2. The gather block evaluates to the list of all taken values.

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