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Re: Re: Perl Idioms Explained - ${\$obj->method} and @{[sort @list]}

by Juerd (Abbot)
on Aug 21, 2003 at 17:28 UTC ( #285535=note: print w/replies, xml ) Need Help??

in reply to Re: Perl Idioms Explained - ${\$obj->method} and @{[sort @list]}
in thread Perl Idioms Explained - ${\$obj->method} and @{[sort @list]}

local $/; print "@{[ <DATA> ]}\n";

Sure, you CAN do that.

  • Creates an array
  • Fetches the file contents
  • Puts that in the new array, as one element
  • Copies the array element
  • Throws the array away
  • Adds \n
  • Passes a large string to print
And it's a lot of work. print while <DATA>; or something similar is usually a MUCH better idea.

Rule of thumb: do not use the idioms explained in the root of this thread, unless you really have to interpolate (like in regexes, although (??{}) may be a better idea). Especially the array creating one.

Juerd # { site => '', plp_site => '', do_not_use => 'spamtrap' }

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