[d883kd8]

Maybe I'm still just showing off, but I don't even use Ruby that often and it's pretty clear what that code does. Split the sentence into words, capitalize the first letter of each word, and re-join the words into a single string.

[pacala]

I don't know Ruby and reached the same conclusion in about 15 seconds. Could be nice to make it a function [or name the results] "capitalizeWords(text)". Possibly adding indentation could help:

    @sentence = @sentence.
      split(' ').
      map!{ |x| 
        x = x[0..0].upcase << x[1..-1]
      }.
      join(' ')

[Edit: Fixed code, thanks knodi123]

[knodi123]

you want the . at the end of the line, so the interpreter knows to expect a continuation.

[dangerlibrary]

I have written my fair share of ruby and yeah, that line didn't take superpowers. The point of the article is still valid, though.

[peterwwillis]

Same. Don't know Ruby at all, but in this case the language is pretty straightforward. Perhaps Ruby was the wrong example. Let's get more magical with Perl:

  map s {(\w+)} {\u$1}g, @sentence;

I'll give a dollar to anyone who already knows Perl and can tell me what the fuck is going on there.

[chromatic]

In rough English, it uppercases the first letter every word in every element of the sentence array.