- import assertString from './util/assertString';
- // http://www.brainjar.com/js/validation/
- // https://www.aba.com/news-research/research-analysis/routing-number-policy-procedures
- // series reserved for future use are excluded
- var isRoutingReg = /^(?!(1[3-9])|(20)|(3[3-9])|(4[0-9])|(5[0-9])|(60)|(7[3-9])|(8[1-9])|(9[0-2])|(9[3-9]))[0-9]{9}$/;
- export default function isAbaRouting(str) {
- assertString(str);
- if (!isRoutingReg.test(str)) return false;
- var checkSumVal = 0;
- for (var i = 0; i < str.length; i++) {
- if (i % 3 === 0) checkSumVal += str[i] * 3;else if (i % 3 === 1) checkSumVal += str[i] * 7;else checkSumVal += str[i] * 1;
- }
- return checkSumVal % 10 === 0;
- }
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