Ruby | Enumerator each_with_index function

The each_with_index function in Ruby is used to Iterate over the object with its index and returns value of the given object.

Syntax: A.each_with_index
Here, A is the initialised object.

Parameters: This function does not accept any parameters.

Returns: the value of the given object.

Example 1:

# Initialising an array and calling each_with_index function
[5, 10, 15, 20, 25, 30].each_with_index do |num, idx|

# Getting the values of the array
  puts "#{num}"
  if ((idx) % 2 == 0)
    puts "end of line"
  end
end

Output:

5
end of line
10
15
end of line
20
25
end of line
30

Example 2:

# Initialising an array and calling each_with_index function
[5, 10, 15, 20, 25, 30].each_with_index do |num, idx|

# Getting the values of the array
  puts "#{num}"
  if ((idx + 1) % 2 == 0)
    puts "end of line"
  end
end

Output:

5
10
end of line
15
20
end of line
25
30
end of line