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There are other contexts as well. Camel III lists three of them. They are:
  • Boolean context, such as when we test for the existence of values in an array.
    while (@files) { my $file = shift @files; unlink $file or warn "Can't delete $file: $!\n; }
  • Void context. It is unclear from Camel III what this context does. The example Camel III gives is a statement consisting of the quoted string "Camel Lot"; Apparently the -w option on the perl interpreter does not like this context, and returns a warning on it. Maybe it's best to avoid this one altogether.

  • Interpolative context, which occurs inside quoted strings when one includes a variable name. The substitution operator s/// and some other expressions also occur in interpolative context.

    Boolean context is ubiquitous, so let's give this little brother of list and scalar its due!


    In reply to Re: Re: Re: Scalars, Lists, and Arrays by sierrathedog04
    in thread Scalars, Lists, and Arrays by ton

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