What are some common enumerable methods in Ruby?

What are some common enumerable methods in Ruby?

In Ruby, common enumerable methods include map, select, reject, reduce, and each. Would you like examples of any specific method?

Can you explain how the map method works?

Sure! The map method transforms each element in an array based on the block you provide. For example, [1, 2, 3].map { |n| n * 2 } returns [2, 4, 6].

What about the select method?

The select method filters elements based on a condition. For instance, [1, 2, 3, 4].select { |n| n.even? } returns [2, 4].

Are there any performance considerations when using these methods?

Yes, using methods like map and select can create new arrays, which may impact performance with large datasets. It's good to be mindful of memory usage.