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597 BTypeScriptView Raw
1import { ValidationOptions } from '../ValidationOptions';
2export declare type IsISBNVersion = '10' | '13' | 10 | 13;
3export declare const IS_ISBN = "isIsbn";
4/**
5 * Checks if the string is an ISBN (version 10 or 13).
6 * If given value is not a string, then it returns false.
7 */
8export declare function isISBN(value: unknown, version?: IsISBNVersion): boolean;
9/**
10 * Checks if the string is an ISBN (version 10 or 13).
11 * If given value is not a string, then it returns false.
12 */
13export declare function IsISBN(version?: IsISBNVersion, validationOptions?: ValidationOptions): PropertyDecorator;