Automatic counter in Ruby for each?

Question

I want to use a for-each and a counter:

i=0
for blah in blahs
    puts i.to_s + \" \" + blah
    i+=1
end

Is there a better way to do it?

Answer 1

If you don't have the new version of each_with_index, you can use the zip method to pair indexes with elements:

blahs = %w{one two three four five}
puts (1..blahs.length).zip(blahs).map{|pair|'%s %s' % pair}

which produces:

1 one
2 two
3 three
4 four
5 five