stdnum
Version:
Standard Number Validation
130 lines • 5.5 kB
JavaScript
import * as exceptions from '../exceptions';
import { strings } from '../util';
const prefixes = [
'01',
'02',
'03',
'04',
'05',
'06',
'11',
'13',
'14',
'16',
'21',
'22',
'23',
'25',
'34',
'51',
'52',
'54',
'55',
'56',
'57',
'58',
'59',
'65',
'10',
'12',
'15',
'24',
'20',
'26',
'27',
'45',
'46',
'47',
'81',
'82',
'83',
'84',
'30',
'32',
'35',
'36',
'37',
'38',
'61',
'31',
'33',
'39',
'41',
'42',
'43',
'46',
'48',
'62',
'63',
'64',
'66',
'68',
'71',
'72',
'73',
'74',
'75',
'76',
'77',
'85',
'86',
'87',
'88',
'91',
'92',
'93',
'98',
'99',
'40',
'44',
'50',
'53',
'60',
'67',
'80',
'90',
'94',
'95',
];
function clean(input) {
return strings.cleanUnicode(input, '- ');
}
const impl = {
name: 'U.S. Employer Identification Number',
localName: 'Employer Identification Number',
abbreviation: 'EIN',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return strings.splitAt(value, 2).join('-');
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length !== 9) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (!strings.isdigits(value)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (!prefixes.includes(value.substr(0, 2))) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
return {
isValid: true,
compact: value,
isIndividual: false,
isCompany: true,
};
},
};
export const { name, localName, abbreviation, validate, format, compact } = impl;
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