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Validate norwegian organization number with javascript
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| // validate org number according to https://www.brreg.no/om-oss/oppgavene-vare/alle-registrene-vare/om-enhetsregisteret/organisasjonsnummeret/ | |
| function validateNorwegianOrgNumber(rawNumber: string): boolean { | |
| if ( | |
| rawNumber == null || | |
| rawNumber.trim().length !== 9 || | |
| !/^\d*$/.test(rawNumber.trim()) | |
| ) | |
| return false; | |
| const numbers = rawNumber.trim(); | |
| const controlNumbers = [3, 2, 7, 6, 5, 4, 3, 2]; | |
| const sum = rawNumber | |
| .substr(0, 8) | |
| .split("") | |
| .map((v, i) => parseInt(v, 10) * controlNumbers[i]) | |
| .reduce((acc, value) => acc + value ); | |
| return 11 - (sum % 11) === parseInt(numbers.charAt(8), 10); | |
| } |
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