From perlop: The => digraph is mostly just a synonym for the comma operator. It's useful for documenting arguments that come in pairs. As of release 5.001, it also forces any word to the left of it to be interpreted as a string.

I'd call 01 a word, especially since 01 =~ /^\w+$/ will match. But yup, since perl defines Perl, 01 isn't a word ;)

In reply to Re^2: Use of the => operator by roju
in thread Use of the => operator by roju

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