Collection is empty
Checks if the a value is an empty object/collection, has no enumerable properties or is any type that is not considered a collection.
- Check if the provided value is
null
or if itslength
is equal to0
.
const isEmpty = val => val == null || !(Object.keys(val) || val).length; isEmpty([]); // true isEmpty({}); // true isEmpty(''); // true isEmpty([1, 2]); // false isEmpty({ a: 1, b: 2 }); // false isEmpty('text'); // false isEmpty(123); // true - type is not considered a collection isEmpty(true); // true - type is not considered a collection