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

title, tags

title	tags
isPrimitive	type,intermediate

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