What are some examples of Ruby enumerable methods?

What are some examples of Ruby enumerable methods?

Ruby enumerable methods are powerful tools for working with collections. Examples include map, select, and reduce. Would you like to see specific examples of how to use them?

Yes, please show me how to use the map method.

Sure! The map method transforms each element in an array. For example:

numbers = [1, 2, 3]
result = numbers.map { |n| n * 2 }
puts result.inspect  # Output: [2, 4, 6]

This doubles each number in the array.

That's great! What about the select method?

The select method filters elements based on a condition. For example:

numbers = [1, 2, 3, 4, 5]
even_numbers = numbers.select { |n| n.even? }
puts even_numbers.inspect  # Output: [2, 4]

This selects only the even numbers from the array.