iterating over each character of a String in ruby 1.8.6 (each_char)

I have the same problem. I usually resort to String#split:

"ABCDEFG".split("").each do |i|
  puts i
end

I guess you could also implement it yourself like this:

class String
  def each_char
    self.split("").each { |i| yield i }
  end
end

Edit: yet another alternative is String#each_byte, available in Ruby 1.8.6, which returns the ASCII value of each char in an ASCII string:

"ABCDEFG".each_byte do |i|
  puts i.chr # Fixnum#chr converts any number to the ASCII char it represents
end

Extending la_f0ka's comment, esp. if you also need the index position in your code, you should be able to do

s = 'ABCDEFG'
for pos in 0...s.length
    puts s[pos].chr
end

The .chr is important as Ruby < 1.9 returns the code of the character at that position instead of a substring of one character at that position.

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