/
main.js
107 lines (78 loc) · 3.36 KB
/
main.js
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// All valid credit card numbers
const valid1 = [4, 5, 3, 9, 6, 7, 7, 9, 0, 8, 0, 1, 6, 8, 0, 8]
const valid2 = [5, 5, 3, 5, 7, 6, 6, 7, 6, 8, 7, 5, 1, 4, 3, 9]
const valid3 = [3, 7, 1, 6, 1, 2, 0, 1, 9, 9, 8, 5, 2, 3, 6]
const valid4 = [6, 0, 1, 1, 1, 4, 4, 3, 4, 0, 6, 8, 2, 9, 0, 5]
const valid5 = [4, 5, 3, 9, 4, 0, 4, 9, 6, 7, 8, 6, 9, 6, 6, 6]
// All invalid credit card numbers
const invalid1 = [4, 5, 3, 2, 7, 7, 8, 7, 7, 1, 0, 9, 1, 7, 9, 5]
const invalid2 = [4, 7, 9, 5, 5, 9, 3, 3, 9, 2, 1, 3, 4, 6, 4, 3]
const invalid3 = [3, 7, 5, 7, 9, 6, 0, 8, 4, 4, 5, 9, 9, 1, 4]
const invalid4 = [6, 0, 1, 1, 1, 2, 7, 9, 6, 1, 7, 7, 7, 9, 3, 5]
const invalid5 = [5, 3, 8, 2, 0, 1, 9, 7, 7, 2, 8, 8, 3, 8, 5, 4]
// Can be either valid or invalid
const mystery1 = [3, 4, 4, 8, 0, 1, 9, 6, 8, 3, 0, 5, 4, 1, 4]
const mystery2 = [5, 4, 6, 6, 1, 0, 0, 8, 6, 1, 6, 2, 0, 2, 3, 9]
const mystery3 = [6, 0, 1, 1, 3, 7, 7, 0, 2, 0, 9, 6, 2, 6, 5, 6, 2, 0, 3]
const mystery4 = [4, 9, 2, 9, 8, 7, 7, 1, 6, 9, 2, 1, 7, 0, 9, 3]
const mystery5 = [4, 9, 1, 3, 5, 4, 0, 4, 6, 3, 0, 7, 2, 5, 2, 3]
// An array of all the arrays above
const batch = [valid1, valid2, valid3, valid4, valid5, invalid1, invalid2, invalid3, invalid4, invalid5, mystery1, mystery2, mystery3, mystery4, mystery5]
// Add your functions below:
function validateCred(creditCardNumbers) {
let lastIndex = creditCardNumbers.length-1;
let lastDigit = creditCardNumbers[lastIndex];
// console.log(typeof(lastIndex));
// console.log(typeof(lastDigit));
let addEven = 0;
let addOdd = 0;
let sum = 0;
for (let i=0; i < lastIndex; i++){
if(creditCardNumbers.length > 16 || creditCardNumbers.length < 16) {
return false
} else if(i % 2 !== 0) {
addEven = addEven + creditCardNumbers[i];
//console.log(addEven);
} else if (creditCardNumbers[i] * 2 > 9){
addOdd = addOdd + ((creditCardNumbers[i] * 2) -9);
}else {
addOdd = addOdd + (creditCardNumbers[i] * 2);
//console.log(addOdd);
}
};
sum = addEven + addOdd + lastDigit;
// console.log(sum);
return sum % 10 === 0;
};
function findInvalidCards(creditCardNumbers) {
//console.log(validateCred(creditCardNumbers[2]));
batchSize = creditCardNumbers.length;
let invalidCards = [];
for (let i = 0; i < batchSize; i++){
if(validateCred(creditCardNumbers[i]) === false){
invalidCards.push(creditCardNumbers[i]);
}
}
return invalidCards;
};
function idInvalidCardCompanies(listCompanyInvalidCards){
const checkCompany = findInvalidCards(listCompanyInvalidCards);
let listCompany = [];
for(let i=0; i < checkCompany.length; i++){
if(checkCompany[i][0] === 3) {
listCompany.push('Amex');
} else if(checkCompany[i][0] === 4) {
listCompany.push('Visa');
} else if(checkCompany[i][0] === 5) {
listCompany.push('Mastercard');
} else if (checkCompany[i][0] === 6) {
listCompany.push('Discover');
} else {
console.log('Company not found');
};
}
let uniqueList = [...new Set(listCompany)];
return uniqueList;
};
console.log(findInvalidCards(batch));
console.log(idInvalidCardCompanies(batch));