So, if I put a filehandle in the diamond, instead of empty diamond, does that mean that the first would operate line by line and the second would pull the whole file into memory?

Thanks much,
Jen


On Apr 6, 2007, at 9:31 AM, Jeff Pang wrote:

: Re: Text munging problem:  question on while loop differences

What is the difference between:

a.                                      while(defined(my $line = <>)) ...

and

b.                                      while(<>)

Hello,

When you say "my $line = <>" you read the content from input (maybe file or terminal STDIN or pipe) line by line and store it on variable $line.but when you just say "while(<>)" this would store each line on Perl's builtin variable $_.



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