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Re^2: shift vs @_

by ikegami (Patriarch)
on Oct 02, 2006 at 17:14 UTC ( [id://575958]=note: print w/replies, xml ) Need Help??

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in reply to Re: shift vs @_
in thread shift vs @_

if 0(zero) is acceptable then don't do this.

More specifically, if one of the following is acceptable, then don't do this:

  • 0 (numeical zero),
  • '0' (the string consisting exactly of the character zero),
  • '' (the zero-length string),
  • undef (the undefined value), or
  • something that evaluates to one of the above in boolean context

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