_validate(cardNumber) {
				cardNumber = cardNumber ? cardNumber.trim() : "";
				return mangoPay._validation._helpers._validateNumericOnly(cardNumber) === false
				|| this._validateCheckDigit(cardNumber) === false ?
					{
						"ResultCode": "105202",
						"ResultMessage": "CARD_NUMBER_FORMAT_ERROR"
					} : true;
			}
/**
			 * PRIVATE. Validates card number
			 *
			 * @param {string} cardNumber Card number to check
			 */
PRIVATE. Validates card number
@param {string} cardNumber Card number to check
PRIVATE . Validates card number @param { string } cardNumber Card number to check
_validate(cardNumber) {
				cardNumber = cardNumber ? cardNumber.trim() : "";
				return mangoPay._validation._helpers._validateNumericOnly(cardNumber) === false
				|| this._validateCheckDigit(cardNumber) === false ?
					{
						"ResultCode": "105202",
						"ResultMessage": "CARD_NUMBER_FORMAT_ERROR"
					} : true;
			}
_validate ( cardNumber ) { cardNumber = cardNumber ? cardNumber . trim ( ) : "" ; return mangoPay . _validation . _helpers . _validateNumericOnly ( cardNumber ) === false || this . _validateCheckDigit ( cardNumber ) === false ? { "ResultCode" : "105202" , "ResultMessage" : "CARD_NUMBER_FORMAT_ERROR" } : true ; }
PRIVATE.
PRIVATE .