Course of Raku / Advanced / Containers / Ordered containers / Exercises / Flatten the parts

Solution: Flatten the parts

Here is a possible solution to the task.

Code

my @first = 1, 2;
my @second = 3, 4, 5;

my @all = flat(@first, @second);
say @all;
say @all.elems;

🦋 You can find the source code in the file flatten-the-parts.raku.

Output

[1 2 3 4 5]
5

Comments

Writing my @all = @first, @second would not give a flat array — it would create a nested array of two arrays, [[1 2] [3 4 5]].
The flat routine merges the elements of both arrays into a single flat sequence, which is then stored in @all. The result has five elements.

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