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Questions and Answers
What are getters?
What are getters?
Getters are instance methods allowing you to read an object's instance variable values.
What are the naming conventions for a Ruby class (filename and class itself)?
What are the naming conventions for a Ruby class (filename and class itself)?
Filename is in lower_snake_case (e.g., sports_car.rb) and class name is in UpperCamelCase (e.g., SportsCar).
How do you set both a getter and a setter in one line in Ruby?
How do you set both a getter and a setter in one line in Ruby?
Use attr_accessor.
What are instance methods, and why do we call them instance methods?
What are instance methods, and why do we call them instance methods?
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What defines behavior and state in a Ruby class?
What defines behavior and state in a Ruby class?
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Study Notes
Getters
- Instance methods that allow access to an object's instance variable values.
- Enable reading properties of an object without exposing the variable directly.
Ruby Class Naming Conventions
- Filename: Should be formatted in lower_snake_case (e.g., sports_car.rb).
- Class Name: Should be formatted in UpperCamelCase (e.g., SportsCar).
Setting Getters and Setters
- Utilize
attr_accessorto define both getter and setter methods in a single line. - Simplifies code and enhances readability while managing object properties.
Instance Methods
- Defined within a Class, allowing specific functionalities relevant to the object.
- Can only be invoked on instances of the Class, distinguishing them from class methods.
Behavior and State in Ruby Classes
- Behavior: Defined by the set of instance methods, allowing interaction and actions on objects.
- State: Defined by instance variables, which store mutable data characterizing the current condition of the instance.
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Description
This quiz covers essential concepts related to Ruby class methods, including getters, setters, and naming conventions for classes and files. Test your knowledge on how to effectively manage object properties and understand instance methods in Ruby. Engage with the principles that define behavior and state in Ruby classes.
