What are some common methods in Ruby?

What are some common methods in Ruby?

In Ruby, common methods include each, map, select, and reduce. Would you like to know more about any specific method?

Can you explain how the map method works?

Sure! The map method creates a new array containing the results of running a block once for every element in the original array.

Can you give me an example of using map?

Absolutely! For example, if you have an array of numbers: numbers = [1, 2, 3], you can use map like this: numbers.map { |n| n * 2 } which will return [2, 4, 6].

What about the select method?

The select method returns a new array containing all elements of the original array for which the given block returns a true value.