FrontendHaltHTML·Intermediate·Conceptual·1 min read
How do disabled and readonly differ?
Short interview answer
Disabled controls are not focusable and are omitted from form submission. Readonly supported controls remain focusable and submit their values but cannot be edited. aria-disabled only communicates state; code must enforce behavior.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.