Re^3: Collapsing a string to unique characters

No good. Hash keys are unordered.

So? The OP didn't make it a requirement the result was ordered:

I have a number of strings, made up only of 64 characters: a-zA-Z0-9/+ . I need to collapse these down to just the unique characters in the string.

Besides, Perlmonks has a long tradition of making small changes to the requirements for the sake of winning at golf. ;-)

Comment on Re^3: Collapsing a string to unique characters

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Re^4: Collapsing a string to unique characters by ikegami (Patriarch) on Jan 10, 2009 at 17:32 UTC
Yes he did	[reply]
Re^5: Collapsing a string to unique characters by dwhite20899 (Friar) on Jan 11, 2009 at 00:47 UTC
Technically, I should have updated the OP, but I didn't, so if my opinion counts, I'd cut JavaFan some slack. I've learned a LOT from this thread. Thanks to all!	[reply]