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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 functions 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 classes as parts, much like how a car has wheels. |
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attribute |
A property classes have that are from composition and are usually variables. |
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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." |
