ruby loop each with index

The "each_with_index" method in Ruby is used to iterate over a collection, such as an array or a hash, while also providing access to the index of each element in the collection. Here's a step-by-step explanation of how it works:

1. Start by defining a collection, such as an array or a hash, that you want to iterate over.

2. Call the "each_with_index" method on the collection, followed by a block of code that will be executed for each element in the collection.

3. Within the block, you can use two variables: the first variable represents the element itself, and the second variable represents the index of the element.

4. The block of code will be executed for each element in the collection, with the element and its corresponding index being passed as arguments to the block.

5. You can now perform any desired operations on the element or its index within the block of code. For example, you can print the element and its index, perform calculations, or modify the element based on its index.

6. Once the block of code has been executed for each element in the collection, the iteration will end, and the program will continue with the next line of code after the "each_with_index" loop.

That's it! The "each_with_index" method allows you to iterate over a collection in Ruby while also accessing the index of each element. It's a useful tool for performing operations that require both the element and its index.