6 ms·

I did FizzBuzz in Rust without using ifs: https://bitbucket.org/iopq/fizzbuzz-in-rust/src/bf4968973d73137f0dfd07205d599bed30a788fa/src/lib.rs?at=master&filevie

• hughes 10y ago
  This looks dreadfully complex.
  • iopq 10y ago
    It's all type signatures. The actual function is seven lines.
    • iainmerrick 10y ago
      This looks complexly dreadful.
• jkcxn 10y ago
  Here is something similar I did in JS https://gist.github.com/JakeCoxon/d78fa1debc13e46ae54a https://gist.github.com/JakeCoxon/d78fa1debc13e46ae54a
  • zcoyle 10y ago
    I came up with nearly the same solution in swift: https://github.com/zachcoyle/fizzbuzz-without-booleans/blob/master/fizzbuzz.swift https://github.com/zachcoyle/fizzbuzz-without-booleans/blob/... But I like your solution better
• ronnier 10y ago
  I'd hate to maintain that.
  • kibwen 10y ago
    On the contrary, I'm fascinated by the prospect of a job where I'd be paid to abuse type systems to produce useless programs. :)
  • iopq 10y ago
    On the contrary, once you understand how it works, it's trivial to change the program Let's say you wanted to change the program to yield "Fizzbuzz" instead of "FizzBuzz" in the 15 case, but the rest being the same. I would first build my string from "fizz" and "buzz" and then I'd have to do .map(capitalize) as the second to last step. If I wanted to have the correct case in the originating strings I could just run them into to_lowercase first before anything happens and capitalize correctly afterwards. (Actually, the capitalize function itself is probably more complicated than this change) Similarly, other changes are intuitively easy to stick into the correct place in the program once you know what this program does.
• vvanders 10y ago
  I'm more of a fan of the zip/cycle approach: https://play.rust-lang.org/?gist=3fb51314d7df9249c9f774dde963873d&version=stable&backtrace=0 https://play.rust-lang.org/?gist=3fb51314d7df9249c9f774dde96...
  • iopq 10y ago
    My approach works with arbitrary conditions, that's why it takes closures as arguments. So it's a little bit of a different requirement, I wanted something as general as possible.
  • bradmwalker 10y ago
    Python https://gist.github.com/bradmwalker/b300f36e9427f729b458 https://gist.github.com/bradmwalker/b300f36e9427f729b458
    • iopq 10y ago
      I like this approach. The only thing I would criticize is that it uses '' as a substitute for None. So something like fizzes, buzzes, empties = str_cycle('Fizz', 3), str_cycle('Buzz', 5), str_cycle('', 7) wouldn't work since it would print 7 instead of the empty string
• urschrei 10y ago
  You've qualified your approach in various ways downthread, but you can avoid ifs far more easily with two simple enums and two match statements. https://github.com/urschrei/rust_fizzbuzz/blob/by_reference/src/main.rs https://github.com/urschrei/rust_fizzbuzz/blob/by_reference/...
  • iopq 10y ago
    I also wanted to avoid match expressions as well