Foundations

What is Hollywood Principle?

Do not call us, we will call you. Framework code runs your hooks instead of your code driving the framework.

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

Hollywood principle: the system calls our app delegate at launch. We do not poll the OS for lifecycle events.

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.