Course of Raku / Addendum 🆕 / Bringing it together / Mixed mini-projects / Exercises / A text histogram

Solution: A text histogram

Here is a possible solution to the task.

Code

my %sales = apples => 5, pears => 3, plums => 8;

for %sales.sort -> $pair {
    say "{$pair.key}\t{ '#' x $pair.value }";
}

🦋 You can find the source code in the file histogram.raku.

Output

apples	#####
pears	###
plums	########

Comments

1. The string repetition operator x builds each bar: '#' x 5 is #####. The value simply becomes the bar length.

2. The \t between the label and the bar is a tab character, so the bars line up in a column instead of starting right after each name of a different length.

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