| System: Linux srv913213 5.15.0-190-generic #200-Ubuntu SMP Fri Aug 7 15:06:04 UTC 2026 x86_64 Current Path : /var/www/talentgenesis_admin_backend/node_modules/validator/es/lib/ |
| Current File : /var/www/talentgenesis_admin_backend/node_modules/validator/es/lib/isLuhnNumber.js |
import assertString from './util/assertString';
export default function isLuhnNumber(str) {
assertString(str);
var sanitized = str.replace(/[- ]+/g, '');
var sum = 0;
var digit;
var tmpNum;
var shouldDouble;
for (var i = sanitized.length - 1; i >= 0; i--) {
digit = sanitized.substring(i, i + 1);
tmpNum = parseInt(digit, 10);
if (shouldDouble) {
tmpNum *= 2;
if (tmpNum >= 10) {
sum += tmpNum % 10 + 1;
} else {
sum += tmpNum;
}
} else {
sum += tmpNum;
}
shouldDouble = !shouldDouble;
}
return !!(sum % 10 === 0 ? sanitized : false);
}