Course of Raku / Essentials / Loops / Exercises / Digital stairs

Solution: Digital stairs

The program uses two loops and two ranges.

Code

Here is one of the possible solutions:

my $size = prompt 'Enter the size: ';

for 1..$size -> $n {
    .print for 1..$n;
    print "\n";
}

🦋 Find the program in the file digital-stairs.raku.

Output

Run the program and enter the size of the structure:

$ raku exercises/loops/digital-stairs.raku
Enter the size: 7
1
12
123
1234
12345
123456
1234567

Comment

Note how the current digit is printed:

.print for 1..$n;

As with say, the print routine can be called as a method. In this case, it is called on the topic variable $_.

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