Nil

nil represents the absence of a value or a non-existent object. It's a special object in Ruby that signifies emptiness or the lack of a meaningful result. Think of it as a placeholder indicating that a variable or expression doesn't currently hold a valid value.

Visit the following resources to learn more:

• @article@Nothingness and the truth
• @article@Everything You Need to Know About Nil
• @article@True, False, and Nil
• @video@Ruby Nil Explained