Foundations
What is Law of Demeter?
A method should only talk to its friends, not strangers. Avoid long chains like a.b.c.d.
Learn this term every day on iPhone.
One hand-written term. A real workplace example. Thirty seconds before your day gets loud.
In real work
Law of Demeter: checkout calls order.total(), not order.customer.wallet.balance.
How is this different from Googling it?
Google gives a definition. Prompthaus pairs each term with how it shows up in standups, PRs, prompts, and design reviews—then quizzes you until the word sticks. One term a day on iPhone.