comment on

This is fun to play with. A few comments:

You wrote:
```
    my $fancy_join = scalarmap {  $a . $b } "", 'a'..'z';
[download]
```
This isn't doing what you think it is. If "" is the initial element, it's not going to be used to join each of the elements together into a string. Well, it's not going to do so as join would do it, at least. Try it with something like ", " to see.
In case you don't feel like trying it, here's the results of:
```
    print  scalarmap {  $a . $b } ", ", 'a'..'z';
[download]
```
```
    , abcdefghijklmnopqrstuvwxyz
[download]
```
I'm not sure I like the use of $a and $b. That's too reminiscent of sort, where the elements are "equivalent" in terms of their relation to each other; they're both elements in the list, in other words.
Here, though, $a is actually the *total* of whatever has come before in the list, where "total" means whatever you've defined it to mean in your code reference. And $b is just a lowly element. :)
So they're not on the same "level" of meaning as it were. I like using $_ inside of map blocks. If it were me, I'd change $b to $_, and $a to something special and local, like $T, for total, or something like that. I don't know.
This is just getting snippy :), but I don't like having the initial value being the parameter following the code block. Because the code block is "acting" on the list, so it makes sense to follow the code block with the list.
Maybe move the inital value in front of the code block?

Anyway, I like this. Thanks for posting it.

In reply to RE: scalarmap - some new perl syntax by btrott
in thread scalarmap - some new perl syntax by ncw

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