Web Reference: Mar 4, 2025 · This article shows how to expose class data to the outside using attr_accessor, attr_reader, and attr_writer in Ruby. Understand the differences between these methods and learn how to implement them effectively in your Ruby classes. You can tell Ruby to create these methods for you with attr_accessor. Here’s how: Look at this line: This is a Ruby method that creates other methods for you. What methods? For this example, it creates: 1. protein 2. protein= These are the same methods we created before… But now you don’t have to type them out. It’s a shortcut! All of the answers above are correct; attr_reader and attr_writer are more convenient to write than manually typing the methods they are shorthands for. Apart from that they offer much better performance than writing the method definition yourself.
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