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Re^3: the basic datatypes, three

by perladdict (Chaplain)
on May 09, 2006 at 13:12 UTC ( #548201=note: print w/ replies, xml ) Need Help??


in reply to Re^2: the basic datatypes, three
in thread the basic datatypes, three

In this example ,assigning a list to a scalar variable returns the result as a total number of elements in a list


Comment on Re^3: the basic datatypes, three
Re^4: the basic datatypes, three
by davorg (Chancellor) on May 09, 2006 at 13:25 UTC
    assigning a list to a scalar variable returns the result as a total number of elements in a list

    No. That's not right. Evaluating a list in a scalar context (by, for example, assigning it to a scalar) returns the last item in the list. Evaluating an array in scalar context returns the number of items in the array.

    There is an important difference between a list and an array.

    # Assign a list to a scalar my $scalar = ('A', 'B', 'C'); print "$scalar\n"; # $scalar is C # Assign an array to a scalar my @array = ('A', 'B', 'C'); $scalar = @array; print "$scalar\n"; # $scalar is 3
    Update: Stupid typo fixed.
    --
    <http://dave.org.uk>

    "The first rule of Perl club is you do not talk about Perl club."
    -- Chip Salzenberg

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