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Utils

getCreditCardLastFourNumbers

Extracts the last four digits from a credit card number, handling various input formats and edge cases.

Category:
Strings

Usage

 const cardNumber = '4242424242424242'

const lastFour = getCreditCardLastFourNumbers(cardNumber)

console.log(lastFour)
// Output: "4242"
 

Type definition

 /**
 * Extracts the last four digits from a given credit card number.
 *
 * @param pan - The full credit card number (PAN).
 * @returns The last four digits of the card number, or an empty string if the input is invalid.
 */
export declare const getCreditCardLastFourNumbers: (pan: string) => string