Overview

It is possible to traverse three arrays at once in Ruby. It can be done using the .zip function. Here is the doc link for the zip function

Let’s see the program for the same

Program

Here is the code to traverse three arrays together when the size of all the three arrays is the same

a = ["d", "e", "f"]
b = ["g", "h", "i"]

["a", "b", "c"].zip(a, b) do |x,y,z| 
   puts x+ " " + y + " " + z 
end

Output

a d g
b e h
c f i

If the size of the arrays is not the same then it will print empty space for elements in arrays of lesser size

a = ["d", "e"]
b = ["g"]

["a", "b", "c"].zip(a, b) do |x,y,z| 
   puts x
   puts y
   puts z
end

Output

a
d
g
b
e

c

Note: Check out our system design tutorial series System Design Questions