-
-
Save codecademydev/6ca0083625176087db993978bf5ee2c4 to your computer and use it in GitHub Desktop.
Codecademy export
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// 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: | |
function validateCred(array) { | |
let extracted1 = 0; | |
let extracted2 = 0; | |
for(let i = 15; i > 0; i -= 2){ | |
extracted1 += array[i] | |
} | |
for(let i = 14; i > -1; i -= 2){ | |
let value = array[i] * 2 | |
if(value > 9){ | |
extracted2 += value - 9; | |
} else { | |
extracted2 += value; | |
} | |
} | |
let sum = extracted2 + extracted1 | |
let modelo = sum % 10 | |
if (modelo === 0){ | |
return true | |
} else { | |
return false | |
} | |
} | |
//console.log(validateCred(invalid1)); | |
console.log(batch.length); | |
console.log(validateCred(batch[7])); | |
let isInvalid = []; | |
function findInvalidCards(arr2){ | |
for(let j = 0; j < arr2.length; j++){ | |
let cardStatus = validateCred(arr2[j]); | |
if (cardStatus === true){ | |
isInvalid.push(arr2[j]); | |
} | |
} | |
return isInvalid | |
} | |
//console.log(findInvalidCards(batch)); | |
findInvalidCards(batch); | |
let idInvalidCardCompanies = (arr) => { | |
let amex = false | |
let visa = false | |
let mastercard = false | |
let discover = false | |
for (let p; p < arr.lenth; p++){ | |
switch (arr[p][0]){ | |
case 3 : | |
return amex = true; | |
break; | |
case 4 : | |
return visa = true; | |
break; | |
case 5 : | |
return mastercard = true; | |
break; | |
case 6 : | |
return discover = true; | |
break; | |
default : | |
return `Credit card company not found for :${arr[p][0]}` ; | |
} | |
} | |
if (amex === true){ | |
return 'Amex sent invalid cards'; | |
} | |
if (visa === true){ | |
return 'Visa sent invalid cards'; | |
} | |
if (mastercard === true){ | |
return 'Mastercard sent invalid cards'; | |
} | |
if (discover === true){ | |
return 'Discover sent invalid cards'; | |
} | |
} | |
console.log(idInvalidCardCompanies(batch)); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment