Reference notes
How IBAN validation works
IBAN validation checks the country code, length rules, allowed characters, and check digits.
Useful output should parse the country and explain whether the check-digit calculation passed.
IBAN validator examples
Examples should show a valid IBAN, an IBAN with invalid check digits, and an IBAN with unsupported formatting.
Spaces may be accepted for readability but should be normalized before validation.
IBAN validator FAQ
IBAN validation checks structure and check digits; it does not prove that an account exists or can receive payments.
Country-specific lengths and formats must be handled carefully.
IBAN validator references
Reference material should cover IBAN structure, country code rules, and MOD 97 check digits.
Future notes can include country-specific length tables.
IBAN developer examples
Developer examples should show normalizing spaces, validating check digits, and returning parsed metadata.
Examples should distinguish structural validation from bank-account verification.