isCreditCardNumber.md

piupiu.isCreditCardNumber(input)

Return true if input is a valid credit card number. If not, return false.

Source

Description

We perform some basic checks, input string :

• must contains only numeric value ;
• is of between 13 and 19 digits ;
• And finally perform a luhn check to ensure that the credit card number is a valid one.

Since

0.1.0

Arguments

input (string)

Returns

(boolean): Returns true if the input is a valid credit card number.

Example

piupiu.isCreditCardNumber('4816089253950827'); 
// true

piupiu.isCreditCardNumber('4816 0892 5395 0827'); 
// false

piupiu.isCreditCardNumber('qededq');
// false

piupiu.isCreditCardNumber(0);
// false

piupiu.isCreditCardNumber(undefined);
// false

piupiu.isCreditCardNumber({});
// false

piupiu.isCreditCardNumber([]);
// false

piupiu.isCreditCardNumber(NaN);
// false