If contain any alphabet letter in between it still returns true

[miguel550]

import sdq from 'sdq'

sdq.isCedula('40222075711') == sdq.isCedula('402aaaaaaaaaaaa22075711')

In the case of having alphabet letter it should return false.

[rmariuzzo]

Good catch, the implementation removes everything except the digits. It should definitively behave differently. Thanks for reporting this.

[gabbanaesteban]

Fixed in #2