Foundations
What is Command?
Packages an action as an object. Supports undo, queues, and logging because the request is a thing you can store.
In real work
Command: BoldCommand wraps the text edit so undo replays the inverse without special cases.
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.