fortea
Version:
some tools for js, save your time for a cup of tea
13 lines (12 loc) • 328 B
TypeScript
/**
* Check if value is null or undefined
* @name isNil
* @param value value to check
* @returns {boolean} true if value is null or undefined
* @example
* isNil(null) // => true
* isNil(undefined) // => true
* isNil(1) // => false
*/
declare function isNil(value: any): value is null | undefined;
export default isNil;