Why use "map!"? you're already working on a disposable copy of your data, there's no need to mandate "in place". Could this be done with one gsub regex? why

Why use "map!"? you're already working on a disposable copy of your data, there's no need to mandate "in place". Could this be done with one gsub regex? why use "x = x[0..0].upcase << x[1..-1]", instead of "x[0]=x[0].upcase; x" ? And why not use the already-written "titleize" function, which capitalizes the first letter of each word? Frankly, I think your darling needs to be put out of its misery. :-)