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10 Cards in this Set
- Front
- Back
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Class |
Tell ruby to make a new type of thing |
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Object |
Two meanings: the most basic type of thing, and any instance of some thing |
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Instance |
What you get when you tell Ruby to create a class |
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Def |
How you define a function inside a class |
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@ |
Inside the function in a class, @ is a variable for the instance/object being accessed |
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Inheritance |
The concept that one class can inherit traits from another class, much like you and your parents |
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Composition |
The concept that a class can be composed of other class parts, much like how a car has wheels (an objects attributes) |
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Attributes |
A property class have that are compositions and are usually variables (4 wheels, color = blue) |
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Is-a |
A phrase to say that something inherits from another, as in a 'salmon' is-a 'fish' |
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Has-a |
A phrase to say that something is composed of other things or has a trait, as in 'a salmon has-a mouth' |
