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30-seconds-of-code/snippets/cast-array.md
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Cast to array type,array man-red-sunset 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.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]