Syntax for a for loop in ruby

Question

How do I do this type of for loop in Ruby?

for(int i=0; i

Answer 1

I keep hitting this as a top link for google "ruby for loop", so I wanted to add a solution for loops where the step wasn't simply '1'. For these cases, you can use the 'step' method that exists on Numerics and Date objects. I think this is a close approximation for a 'for' loop.

start = Date.new(2013,06,30)
stop = Date.new(2011,06,30)
# step back in time over two years, one week at a time
start.step(stop, -7).each do |d| 
    puts d
end

Answer 2

['foo', 'bar', 'baz'].each_with_index {|j, i| puts "#{i} #{j}"}

Answer 3

To iterate a loop a fixed number of times, try:

n.times do
  #Something to be done n times
end

Answer 4

What? From 2010 and nobody mentioned Ruby has a fine for /in loop (it's just nobody uses it):

ar = [1,2,3,4,5,6]
for item in ar
  puts item
end