I do like lists, it is so much more flexible for passing parameters, easy to build optional parameters, etc. I just need always be concerned about scalar/list context in expressions, that's all. I found japhy's article about scalar/list context, and it was real eye-opener, when I learned that
sub A {
return ('a', 'b', 'c');
}
$a = A(); # $a gets value 'c'
($b) = A(); # $b gets value 'a'
As japhy explains:
The A() function, in scalar context, has the comma operator act on the comma separated series of values, and so $a is set to 'c' which makes sense. $b, however, gets the value 'a', because it invokes list context on the function, which returns a list.
japhy: ++ for you!
pmas
To make errors is human. But to make million errors per second, you need a computer. | [reply]
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