The TIN to format.
The options for formatting the TIN. {boolean} isBusinessTin: defaults to false for SSN format, but can be set to true for EIN format.
The formatted TIN.
SSN:
formatTinAsYouType("123"); // "123"
formatTinAsYouType("1234", { isBusinessTin: false }); // "123 - 4"
formatTinAsYouType("123456", { isBusinessTin: false }); // "123 - 45 - 6"
formatTinAsYouType("123456789", { isBusinessTin: false }); // "123 - 45 - 6789"
EIN:
formatTinAsYouType("12", { isBusinessTin: true }); // "12"
formatTinAsYouType("123", { isBusinessTin: true }); // "12 - 3"
formatTinAsYouType("123456789", { isBusinessTin: true }); // "12 - 3456789"
Formats a TIN as you type.