getCardBrand.js

let brands = {};
brands["elo"] = {
    regexpBin: /^401178|^401179|^431274|^438935|^451416|^457393|^457631|^457632|^504175|^627780|^636297|^636368|^(506699|5067[0-6]\d|50677[0-8])|^(50900\d|5090[1-9]\d|509[1-9]\d{2})|^65003[1-3]|^(65003[5-9]|65004\d|65005[0-1])|^(65040[5-9]|6504[1-3]\d)|^(65048[5-9]|65049\d|6505[0-2]\d|65053     [0-8])|^(65054[1-9]|6505[5-8]\d|65059[0-8])|^(65070\d|65071[0-8])|^65072[0-7]|^(65090[1-9]|65091\d|650920)|^(65165[2-9]|6516[6-7]\d)|^(65500\d|65501\d)|^(65502[1-9]|6550[3-4]\d|65505[0-8])/,
    regexpFull: /^(401178|401179|431274|438935|451416|457393|457631|457632|504175|627780|636297|636368|(506699|5067[0-6]\d|50677[0-8])|(50900\d|5090[1-9]\d|509[1-9]\d{2})|65003[1-3]|(65003[5-9]|65004\d|65005[0-1])|(65040[5-9]|6504[1-3]\d)|(65048[5-9]|65049\d|6505[0-2]\d|65053[0-8])|(65054[1-9]| 6505[5-8]\d|65059[0-8])|(65070\d|65071[0-8])|65072[0-7]|(65090[1-9]|65091\d|650920)|(65165[2-9]|6516[6-7]\d)|(65500\d|65501\d)|(65502[1-9]|6550[3-4]\d|65505[0-8]))[0-9]{10,12}/,
    regexpCvv: /^\d{3}$/,
}; 
brands["dinners"] = {
    regexpBin: /^3(?:0[0-5]|[68][0-9])/,
    regexpFull: /^3(?:0[0-5]|[68][0-9])[0-9]{11}$/,
    regexpCvv: /^\d{3}$/
}; 
brands["discover"] = {
    regexpBin: /^6(?:011|5[0-9]{2})/,
    regexpFull: /^6(?:011|5[0-9]{2})[0-9]{12}$/,
    regexpCvv: /^\d{3}$/
}; 
brands["hipercard"] = {
    regexpBin: /^3841[046]0|^60/,
    regexpFull: /^(38[0-9]{17}|60[0-9]{14})$/,
    regexpCvv: /^\d{3}$/
}; 
brands["amex"] = {
    regexpBin: /^3[47]/,
    regexpFull: /^3[47][0-9]{13}$/,
    regexpCvv: /^\d{3,4}$/
}; 
brands["aura"] = {
    regexpBin: /^50[0-9]/,
    regexpFull: /^50[0-9]{14,17}$/,
    regexpCvv: /^\d{3}$/
}; 
brands["mastercard"] = {
    regexpBin: /^5[1-5][0-9][0-9]/,
    regexpFull: /^5[1-5][0-9]{14}$/,
    regexpCvv: /^\d{3}$/
};
brands["visa"] = {
    regexpBin: /^4/,
    regexpFull: /^4[0-9]{12}(?:[0-9]{3})?$/,
    regexpCvv: /^\d{3}$/
};

function validateNumber(brand, card) {
    return brands[brand].regexpFull.test(Number(card))
}

export default function getBrand(card) {
    let results = new Array()

    if (validateNumber('mastercard', card)) results.push('mastercard')
    if (validateNumber('visa', card)) results.push('visa')
    if (validateNumber('amex', card)) results.push('amex')
    if (validateNumber('elo', card)) results.push('elo')
    if (validateNumber('dinners', card)) results.push('dinners')
    if (validateNumber('discover', card)) results.push('discover')
    if (validateNumber('aura', card)) results.push('aura')
    if (validateNumber('hipercard', card)) results.push('hipercard')

    if(results.length==1) return results[0]
    return null
}