ISBN Verify

Verify ISBN string format and check digit.

Demo

• Demo page

Examples

import IsbnVerify from '@saekitominaga/isbn-verify';

const isbnVerify = new IsbnVerify('978-4-06-519981-0');
isbnVerify.isValid(); // false
isbnVerify.isIsbn10(); // false
isbnVerify.isIsbn13(); // true
isbnVerify.isIsbn13({ check_digit: true }); // false
isbnVerify.verifyFormat(); // true
isbnVerify.verifyCheckDigit(); // false

Constructor

new IsbnVerify(isbn: string, strict = false)

Parameters

Methods

Arguments of isIsbn13() and isIsbn10() method

interface isOption {
	check_digit?: boolean; // Verify format including check digit
}

* isIsbnXX({ check_digit: true }) has the same effect as isIsbnXX() && isValid().