[](https://badge.fury.io/js/nit-verifier)  
npm install nit-verifier
!10x faster
!10x smaller
Blazing fast, ultra-light, minimal, dependency-free, tree-shakeable, battle-tested, types included, reliable, Colombian NIT verifier.
```
npm i nit-verifier
``
getVerificationDigit("860.069.804")
// 2
Check the tests for more uses cases.
It uses the undocumented DIAN's module-11` algorithm to generate the verification digit for any given NIT.