express-image-validator
Version:
Validator of various image parameters in Express.js applications
13 lines (12 loc) • 575 B
TypeScript
/**
* Checks if the given value is a valid number (including 0).
* @param { number | null | undefined } num Value to check.
* @returns { boolean } `true` if value is a number, `false` if `null` or `undefined`.
*/
export declare function isNumber(num: number | null | undefined): boolean;
/**
* Checks if the given value is a negative number.
* @param { number | null | undefined } num Value to check.
* @returns { boolean } `true` if value is a negative number, `false` otherwise.
*/
export declare function isNegativeNumber(num: number | null | undefined): boolean;