What is the "Law of Demeter"? (Don't talk to strangers)

Difficulty: 5/10

encapsulation, object coupling, design principles

Law of Demeter

The Law of Demeter is a guideline for minimizing knowledge between objects. A method should generally communicate with its immediate collaborators rather than navigating through long chains of unrelated objects. The common symptom is code such as order.getCustomer().getAddress().getCity().getName(). Such chains expose internal object structure and increase coupling. The principle is a heuristic rather than an absolute prohibition on method chaining.

javascript

1
Prefer interactions with immediate collaborators.
2
Avoid excessive knowledge of another object's internal structure.
3
Long navigation chains often indicate misplaced responsibility.

What is the "Law of Demeter"? (Don't talk to strangers)

Difficulty: 5/10

encapsulation, object coupling, design principles

Law of Demeter

javascript

1
Prefer interactions with immediate collaborators.
2
Avoid excessive knowledge of another object's internal structure.
3
Long navigation chains often indicate misplaced responsibility.

What is the "Law of Demeter"? (Don't talk to strangers)

Law of Demeter

What is the "Law of Demeter"? (Don't talk to strangers)

Law of Demeter

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