react-native-moyasar-sdk/lib/module/helpers/credit_card_utils.js

Official React Native Moyasar SDK - Integrate Credit Cards, Apple Pay, Samsung Pay, and STC Pay with simple interfaces for a seamless payment experience in your React Native app

"use strict";

import { CreditCardNetwork } from "../models/credit_card_network.js";
import { inMadaRange } from "./mada_util.js";
export function getCreditCardNetworkFromNumber(input) {
  if (inMadaRange(input)) {
    return CreditCardNetwork.mada;
  } else if (new RegExp('^3[47]').test(input)) {
    return CreditCardNetwork.amex;
  } else if (new RegExp('^4').test(input)) {
    return CreditCardNetwork.visa;
  } else if (new RegExp('^(?:5[1-5][0-9]{2}|222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)').test(input)) {
    return CreditCardNetwork.master;
  }
  return CreditCardNetwork.unknown;
}
export function isValidLuhn(cardNumber) {
  const digits = cardNumber.split('').reverse().map(digit => parseInt(digit, 10));
  const sum = digits.reduce((acc, digit, index) => {
    if (index % 2 === 1) {
      const doubled = digit * 2;
      return acc + (doubled > 9 ? doubled - 9 : doubled);
    }
    return acc + digit;
  }, 0);
  return sum % 10 === 0;
}
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