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Perl: the Markov chain saw

Re: A simple backticks question

by kennethk (Abbot)
on Mar 17, 2014 at 16:33 UTC ( #1078623=note: print w/replies, xml ) Need Help??

in reply to A simple backticks question

The high order concept here is Context. The two major contexts are list and scalar. For example, calling an array in list context returns a list of the values in the array; calling an array in scalar context returns the length of the array.

The parentheses following foreach are an indicator that you are calling your arguments in list context. From `STRING`:

In list context, returns a list of lines (however you've defined lines with $/ or $INPUT_RECORD_SEPARATOR), or an empty list if the command failed.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

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