perl chocker - Fashion Magic
Style, especially royal style, is timeless. Kate Middleton continued a style tradition Monday night, stepping out in a pearl chocker from Queen Elizabeth‘s collection, the same statement piece once ... Here the sigil changes to $ to denote that you are accessing a scalar, however the trailing [0] tells perl that it is accessing a scalar element of the array in _ or in other words, @_.
Understanding the Context
syntax - What are the differences between $, @, % in a Perl variable ... What is the meaning of @_ in Perl? perldoc perlvar is the first place to check for any special-named Perl variable info. Quoting: @_: Within a subroutine the array @_ contains the parameters passed to that subroutine.
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More details can be found in perldoc perlsub (Perl subroutines) linked from the perlvar: Any arguments passed in show up in the array @_ . Therefore, if you called a function ... 51 I guess the tag is a variable, and it is checking for 9eaf - but does this exist in Perl? What is the "=~" sign doing here and what are the "/" characters before and after 9eaf doing? 53 From Perl documentation: OR List operators On the right side of a list operator, it has very low precedence, such that it controls all comma-separated expressions found there.
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operators - What is the difference between "||" and "or" in Perl ... Below are the flags that I encounter most often, and I don't have a clue what they mean: perl -pe perl -pi perl -p perl -w perl -d perl -i perl -t I will be very grateful if you tell me what each of those mean and some use cases for them, or at least tell me a way of finding out their meaning.