Re^3: Splitting in while loop


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Re^3: Splitting in while loop

by AnomalousMonk (Archbishop)

on Oct 07, 2021 at 07:21 UTC ( [id://11137290]=note: print w/replies, xml )

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in reply to Re^2: Splitting in while loop
in thread Splitting in while loop

while (split(/[, ]+/, <DATA>)) { ... }
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Only a while-loop condition expression like

while (<DATA>)
{
  ...
}
[download]

assigns implicitly to $_ (see tybalt89's example) (update: but see kcott's post for a more complete discussion of $_ assignment special-casing). An arbitrary expression like split(...) does not. Had you had warnings enabled, Perl would have at least hinted at this problem.

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