PHP, for all its warts, is pretty good on this count. There’s no difference between an array and a hash (maybe I’m naive, but this seems obviously right to me), and to iterate through either you just do
foreach (array/hash as $key => $value)
In Ruby there are a bunch of ways to do this sort of thing:
array.length.times do |i|
end
array.each
array.each_index
for i in array
Hashes make more sense, since I just always use
hash.each do |key, value|
Why can’t I do this for arrays? If I want to remember just one method, I guess I can use each_index (since it makes both the index and value available), but it’s annoying to have to do array[index] instead of just value.
Oh right, I forgot about array.each_with_index. However, this one sucks because it goes |value, key| and hash.each goes |key, value|! Is this not insane?