30-seconds-of-code/javascript/snippets/is-nil.md

title, type, tags, cover, dateModified

title	type	tags	cover	dateModified
Value is nil	snippet	type	river-houses	2020-10-20T23:02:01+03:00

Checks if the specified value is null or undefined.

• Use the strict equality operator to check if the value of val is equal to null or undefined.

const isNil = val => val === undefined || val === null;

isNil(null); // true
isNil(undefined); // true
isNil(''); // false