How to usemap.with_index in Ruby

Approach 3: Using Enumerable#each_with_index

Below is the Code:

Ruby

array = ["a", "b", "c"]

mapped_array = array.map.with_index do |element, index|
  "Mapped Element #{index}: #{element}"
end

puts mapped_array

Output

Mapped Element 0: a
Mapped Element 1: b
Mapped Element 2: c

Explanation:

The map.with_index method chains the map method with the with_index method, allowing you to map elements along with their corresponding indices.
Within the block, you can perform any desired mapping operation using the element and index.

How to map/collect with index in Ruby?

Mapping or collecting elements with their corresponding indices in Ruby is a common requirement in various programming scenarios. Ruby provides several options to suit your needs.

Let’s explore four approaches to map or collect elements with their indices: