Get card network and cvv length given a card number or bin

card-network.js

function getCardType(number) {
    var res = {
        id: null,
        name: null
    };
    if (number.length <= 2) return res;

    var re = new RegExp("^4");
    if (number.match(re) != null) {
        res.id = "visa";
        res.name = "VISA";
        res.cvvLength = 3;
    }


    // Mastercard
    // Updated for Mastercard 2017 BINs expansion
    if (/^(5[1-5][0-9]{14}|2(22[1-9][0-9]{12}|2[3-9][0-9]{13}|[3-6][0-9]{14}|7[0-1][0-9]{13}|720[0-9]{12}))$/.test(number)) {
        res.id = "master";
        res.name = "Mastercard";
        res.cvvLength = 3;
    }

    // AMEX
    re = new RegExp("^3[47]");
    if (number.match(re) != null) {
        res.id = "amex";
        res.name = "Amex";
        res.cvvLength = 4;
    }

    // Discover
    re = new RegExp("^(6011|622(12[6-9]|1[3-9][0-9]|[2-8][0-9]{2}|9[0-1][0-9]|92[0-5]|64[4-9])|65)");
    if (number.match(re) != null) {
        res.id = "discover";
        res.name = "Discover";
    }

    // Diners
    re = new RegExp("^(36|38)");
    if (number.match(re) != null) {
        res.id = "diners";
        res.name = "Diners";
        res.cvvLength = 3;
    }

    // Diners - Carte Blanche
    re = new RegExp("^30[0-5]");
    if (number.match(re) != null) {
        res.id = "diners";
        res.name = "Diners - Carte Blanche";
        res.cvvLength = 3;
    }

    // JCB
    re = new RegExp("^35(2[89]|[3-8][0-9])");
    if (number.match(re) != null) {
        res.id = "jcb";
        res.name = "JCB";
    }

    // Visa Electron
    re = new RegExp("^(4026|417500|4508|4844|491(3|7))");
    if (number.match(re) != null) {
        res.id = "visa";
        res.name = "Visa Electron";
        res.cvvLength = 3;
    }



    //Rupay cards
    var rupayRange = [
        [508500, 508999],
        [606985, 607384],
        [607385, 607484],
        [607485, 607984],
        [608001, 608100],
        [608101, 608200],
        [608201, 608300],
        [608301, 608350],
        [608351, 608500],
        [652150, 652849],
        [652850, 653049],
        [653050, 653149],
        [353600, 353810],
        [817200, 820199]
    ]
    var bin = parseInt(number.substr(0, 6));
    for (var _r = 0; !isNaN(bin) && (_r < rupayRange.length); _r++) {
        if (rupayRange[_r][0] <= bin && bin <= rupayRange[_r][1]) {
            res.id = "rupay";
            res.name = "Rupay";
            res.cvvLength = 3;
            break;
        };
    }

    return res;
}

console.log(getCardType("4111111111111111"))
/*
{
  cvvLength: 3,
  id: "visa",
  name: "VISA"
}
*/