I have read over my code over and over and cannot find why nothing is logging to the console.
I am working on the Credit Card Checker challenge project. https://www.codecademy.com/practice/projects/credit-card-checker
Most of it is commented out because I am just testing my first function. The function is not outputting anything to the console, I am trying to figure out why.
You can ignore the first part because they wrote that, I wrote everything after ā// Add your functions below:ā
Code:
You are better off copy/pasting your code here rather than upload a file for people to download.
I tried that but it got all weird and made some parts scroll able and some parts not which made it a little hard to read.
// 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 = [5, 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:
var totalSum = ;
var cred = false;
var invalidCard = ;
function finalValidation(array) {
console.log(totalSum.join());
if (totalSum.join() % 10 === 0) {
return ('This card is valid: ' + array );
cred = true;
}
else {
return ('This card is invalid: ' + array );
cred = false;
}
function validateCred(array) {
for (var i = array.length; i > 0; iā) {
for (var even = 35; even > 0; even--) {
if (even % 2 === 0 ) {
if (array[i] * 2 > 9) {
totalSum.push(array[i] * 2 - 9);
}
else {
totalSum.push(array[i] * 2);
}
}
}
}
}
finalValidation(valid1);
}
/*
function findInvalidCards(nested) {
for (var i = 0; i < nested.length; i++) {
for (var j = 0; j < nested.length; j++) {
validateCred(nested[i]);
if (cred === false) {
invalidCard.push(nested[i]);
}
}
}
}
function idInvalidCardCompanies() {
var firstDigitForReal = [];
var firstDigit = [];
var companies = [];
findInvalidCards(batch);
for (var i = 0; i < invalidCard.length; i++) {
firstDigit.push(invalidCard[i]);
firstDigitForReal = firstDigit[0];
switch (firstDigitForReal) {
case 3:
companies.push('Amex (American Express)');
break;
case 4:
companies.push('Visa');
break;
case 5:
companies.push('Mastercard');
break;
case 6: companies.push('Discover');
break;
default :
console.log('Error, invalid company.');
break;
}
for (var j = 0; j < companies.length; j++) {
var J = j - j;
if (companies[j] === companies[J]) {
companies.pop();
}
}
}
}
idInvalidCardCompanies();
*/
function validateCred(array) {
for (var i = array.length; i > 0; iā) {
for (var even = 35; even > 0; even--) {
if (even % 2 === 0) {
if (array[i] * 2 > 9) {
totalSum.push(array[i] * 2 - 9);
}
else {
totalSum.push(array[i] * 2);
}
}
}
}
}
You are missing an - from i- in the for loop. Should be iā. It will not work as is.