Roman numerals
Convert a whole number to a Roman numeral, then examine the example's input and output.
The historic site linked a Roman sample. This converter is a new educational example, not a recovered copy or an ADsafe-validated widget. It accepts whole numbers from 1 to 3999 and calculates a Roman numeral locally.
Enter a whole number between 1 and 3999.
MMXXVI
The boundary to notice
The example reads its numeric input and updates its result. Its behaviour is deliberately small. In the historical ADsafe model, static checking and a mediated DOM interface were the mechanisms intended to constrain a guest widget. Our new example uses ordinary JavaScript and makes no isolation claim.
See Widget Structure for that distinction.