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

title, tags, expertise, firstSeen, lastUpdated

title	tags	expertise	firstSeen	lastUpdated
Cast to array	type,array	beginner	2018-01-23T20:54:12+02:00	2020-09-15T16:28:04+03:00

Casts the provided value as an array if it's not one.

• Use Array.prototype.isArray() to determine if val is an array and return it as-is or encapsulated in an array accordingly.

const castArray = val => (Array.isArray(val) ? val : [val]);

castArray('foo'); // ['foo']
castArray([1]); // [1]