Besides that, $_ is the default variable. I prefer to see people take advantage of that...

Please note that the advantage in these cases is only in the number of characters that you need to type. And perhaps in readability (which some people might consider a disadvantage in these cases). For execution, there is no difference in the opcode tree generated, and thus no difference in execution. For example: 

$ perl -MO=Deparse -e 'length'
length $_;

[download]
Personally, I prefer to use an explicit $_ if I think it improves the readability of my code.

Liz

In reply to Re: Re: Re: Broken regexp by liz
in thread Broken regexp by ColtsFoot

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