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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 = [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: | |
const validateCred = arr =>{ | |
const _arr = arr | |
.map((v,i)=>{ | |
while (i<arr.length && (i%2) == 0){ | |
return v*2>9?v*2-9:v*2; | |
} | |
return v | |
}) | |
.reduce((acc,val)=>acc+val)%10; | |
return _arr ===0?'Valid':'Not Valid'; | |
}; | |
const idInvalidCardCompanies = arr =>{ | |
const _arr = arr.map(v=>{ | |
switch (v[0]){ | |
default: | |
return 'Company not Found'; | |
break; | |
case 3: | |
return 'Amex'; | |
break; | |
case 4: | |
return 'Visa'; | |
break; | |
case 5: | |
return 'Mastercard'; | |
break; | |
case 6: | |
return 'Discover'; | |
break; | |
}; | |
}).filter((value,index,arr)=>{ | |
return (arr.indexOf(value) === index) || (value=='Company not Found') | |
}); | |
return _arr; | |
}; | |
const cardReader = stringCard =>{ | |
_arr = stringCard.split('').map(x=>parseInt(x)); | |
return _arr | |
}; | |
const cardValidCreator = arr =>{ | |
const _arr = arr | |
.map((v,i)=>{ | |
while (i<arr.length && (i%2) === 0){ | |
return v*2>9?v*2-9:v*2; | |
} | |
return v | |
}) | |
.reduce((acc,val)=>acc+val)%10; | |
let fix = _arr>5?10-_arr:-_arr | |
let index = 0 | |
do { | |
index = Math.floor(Math.random() * arr.length); | |
} | |
while (index%2===0){ | |
let _temp = arr[index] + fix >= 0?arr[index]+fix:arr[index]-fix; | |
console.log(`Fixed Index ${index} from ${arr[index]} to ${_temp}`) | |
arr[index]=_temp; | |
return arr; | |
}; | |
return arr; | |
}; | |
let card = cardReader('375566924701664'); | |
console.log(card.join('')) | |
console.log(validateCred(card)); | |
console.log(idInvalidCardCompanies([card])); | |
let newCard = cardValidCreator(card) | |
console.log(`New Valid Card: ${newCard.join('')}`) | |
console.log(validateCred(newCard)); | |
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