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@ -169,7 +169,7 @@ rabbits.sort(Rabbit.compare);
rabbits[0].run(); // Black Rabbit runs with speed 5. rabbits[0].run(); // Black Rabbit runs with speed 5.
``` ```
Now when we can call `Rabbit.compare`, the inherited `Animal.compare` will be called. Now when we call `Rabbit.compare`, the inherited `Animal.compare` will be called.
How does it work? Again, using prototypes. As you might have already guessed, `extends` gives `Rabbit` the `[[Prototype]]` reference to `Animal`. How does it work? Again, using prototypes. As you might have already guessed, `extends` gives `Rabbit` the `[[Prototype]]` reference to `Animal`.
@ -180,7 +180,7 @@ So, `Rabbit extends Animal` creates two `[[Prototype]]` references:
1. `Rabbit` function prototypally inherits from `Animal` function. 1. `Rabbit` function prototypally inherits from `Animal` function.
2. `Rabbit.prototype` prototypally inherits from `Animal.prototype`. 2. `Rabbit.prototype` prototypally inherits from `Animal.prototype`.
As the result, inheritance works both for regular and static methods. As a result, inheritance works both for regular and static methods.
Here, let's check that by code: Here, let's check that by code:
@ -197,7 +197,7 @@ alert(Rabbit.prototype.__proto__ === Animal.prototype); // true
## Summary ## Summary
Static methods are used for the functionality that belongs to the class "as a whole", doesn't relate to a concrete class instance. Static methods are used for the functionality that belongs to the class "as a whole". It doesn't relate to a concrete class instance.
For example, a method for comparison `Article.compare(article1, article2)` or a factory method `Article.createTodays()`. For example, a method for comparison `Article.compare(article1, article2)` or a factory method `Article.createTodays()`.