Luhn Algorithm

Validate an input for Luhn check

This repository implements the Luhn algorithm to check for whether an input value is valid or invalid.

Function

checkLuhn(input: string)

• Use the function to check the value
• It will return the following object:
  • {input: string, valid: boolean, remainder: number | null, messageL string}

Example

• checkLuhn("4054425307472577")
• This will give { "input": "4054425307472577", "valid": true, "message": "Number is valid", "remainder": 0 }

Note:

There is no length check to keep it open to general use, it will give invalid result if the string contains alphabetic characters

Author: Gurjinder Singh (@Github/Gurjinder7)