What is a better way of writing this code so that I'm sure all the variables in the array are at least defined or set to the empty string
What about using split /\|/, "$str|||||_" at the end?
$_ ||= ""in the map is redundant since the parts of the string that are split will always be defined
The || operator is different from the //. It tests for true, not definedness. ||= will replace signle zeros, too.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: How to clean an array of strings after a split by choroba
in thread How to clean an array of strings after a split by MrSnrub

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