Course of Raku / Objects, I/O, and exceptions / Input and output / File handles / Exercises / Write with a handle

Solution: Write with a handle

Here is a possible solution to the task.

Code

my $fh = open 'out.txt', :w;
$fh.say($_) for 1..3;
$fh.close;

print slurp 'out.txt';

🦋 You can find the source code in the file write-with-a-handle.raku.

Output

1
2
3

Comments

open with the :w flag gives a handle for writing. The handle stays open across the loop, so each $fh.say adds another line — this is the advantage of a handle over spurt, which would reopen the file every time.
close flushes the data to disk, so the following slurp reads back all three lines.

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