Correct: `Array.from()` (it’s a static method) Incorrect: `Array.join()` (doesn’t exist; it’s a prototype method) This patch uses the common `#` syntax to denote `.prototype.`.
332 B
332 B
castArray
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]