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Write what you mean (Score:2)

by Juerd (1796)

If you test for truth, you should do that only if you agree with Perl on what is true.

If you just want to weed out empty strings and zeroes, but want to keep NULLs, do so explicitly:
grep { not defined xor length and $_ != 0 } @goo
- Re:Write what you mean (Score:2)
  
  by Ovid (2709) on 2004.03.29 12:41 (#29729) Homepage Journal
  
  Yes, explicitly stating what you want is much cleaner. Still, it would be interesting to create a three-value logic mode in Perl, one where you can know that "undefined" is not false, nor is it greater or less than 13.6 (for example).
  
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