Product
What is Edge Case?
A scenario that happens at the extreme limits of normal use. Edge cases break products that were only tested against the happy path.
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
Write edge cases for the file upload feature. What happens with a 0-byte file, a 10GB file, a duplicate name, and no internet?
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.