isbn property
ISBN (10 or 13 digits)
Implementation
static final RegExp isbn = RegExp(
r'^(ISBN\s)?(?=[-0-9X\s]{10,17}$)(?:97[89][-\s]?)?[0-9]{1,5}[-\s]?[0-9]+[-\s]?[0-9]+[-\s]?[0-9X]$',
caseSensitive: false,
);
ISBN (10 or 13 digits)
static final RegExp isbn = RegExp(
r'^(ISBN\s)?(?=[-0-9X\s]{10,17}$)(?:97[89][-\s]?)?[0-9]{1,5}[-\s]?[0-9]+[-\s]?[0-9]+[-\s]?[0-9X]$',
caseSensitive: false,
);