isCollection()

True if maybeCollection is a Collection, or any of its subclasses.

isCollection(maybeCollection: unknown): boolean

Discussion

const { isCollection, Map, List, Stack } = require('immutable');
isCollection([]); // false
isCollection({}); // false
isCollection(Map()); // true
isCollection(List()); // true
isCollection(Stack()); // truerun it

This documentation is generated from immutable.d.ts. Pull requests and Issues welcome.

© 2014–present, Lee Byron and other contributors
Licensed under the 3-clause BSD License.
https://immutable-js.com/docs/v4.0.0/isCollection()/