30-seconds-of-code/snippets/isPrimitive.md

title, tags, cover, firstSeen, lastUpdated

title	tags	cover	firstSeen	lastUpdated
Number is primitive	type	blog_images/flower-camera.jpg	2017-12-31T12:48:13+02:00	2020-10-22T20:23:47+03:00

Checks if the passed value is primitive or not.

• Create an object from val and compare it with val to determine if the passed value is primitive (i.e. not equal to the created object).

const isPrimitive = val => Object(val) !== val;

isPrimitive(null); // true
isPrimitive(undefined); // true
isPrimitive(50); // true
isPrimitive('Hello!'); // true
isPrimitive(false); // true
isPrimitive(Symbol()); // true
isPrimitive([]); // false
isPrimitive({}); // false