in reply to Five Ways to Reverse a String of Words (C#, Perl 5, Perl 6, Ruby, Haskell)

Because I really have come to hate for loops, here is one in Javascript which uses a fixed point combinator to do the looping and filtering of the list. 

function (orig, i, acc) {  
    if (i > orig.length) return acc;
    if (orig[i] != "") acc[acc.length] = orig[i];
    return arguments.callee(orig, (i + 1), acc);
}("  one   two three four    ".split(" ").reverse(), 0, []).join(" ")

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-stvn

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Re^2: Five Ways to Reverse a String of Words (C#, Perl 5, Perl6, Ruby, Haskell)
by jdporter (Paladin) on Dec 12, 2006 at 15:50 UTC

    Huh? 

    "  one   two three four    ".split(/ /).reverse().join(" ")

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    We're building the house of the future together.
[reply]
[d/l]

      Actually that doesn't work correctly in FF or Safari on OS X. It still has several empty strings filling up the array. They become more evident if you do this: 

      "  one   two three four    ".split(/ /).reverse().join("|")

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      which gives you "||||four|three|two|||one||".

      -stvn
[reply]
[d/l]

        Interesting... It works fine in EcmaScript. Or at least Jscript. :-)
        So how about 

        "  one   two three four    ".split(/ +/).reverse().join(" ")

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        We're building the house of the future together.
[reply]
[d/l]

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