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Re^3: "$_" vs. $_

by Beechbone (Friar)
on Apr 10, 2007 at 14:31 UTC ( [id://609158]=note: print w/replies, xml ) Need Help??


in reply to Re^2: "$_" vs. $_
in thread "$_" vs. $_

Um, in both examples you are not setting $_---you are only modifying it.

Small difference, but with it, I'd also say "never set $_".


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Re^4: "$_" vs. $_
by mrpeabody (Friar) on Apr 10, 2007 at 19:47 UTC
    Um, in both examples you are not setting $_---you are only modifying it.
    Interesting distinction. I think of them as synonyms, and would certainly argue that any statement that starts with "$_ =" is "setting" the variable. However, what name we use when giving a variable a new value is not really the point.

    What makes both of these examples useful is that they implicitly alias $_ to another variable before acting on it. That's where they differ from the OP's usage.

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