gurjinder7 / luhn-deno

Luhn algorithm function to check an input validation

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)