API Reference > imodeljs-backend > Schema > Entity > is is MethodStatic Beta return whether this Entity class is a subclass of another Entity class is(otherClass: undefined): boolean note the subclass-ness is checked according to JavaScript inheritance, to check the underlying raw EC class's inheritance, you can use ECClass.is note this should have a type of is<T extends typeof Entity>(otherClass: T): this is T but can't because of typescript's restriction on the this type in static methods Parameter Type Description otherClass undefined Returns - boolean Defined in core/backend/src/Entity.ts Line 96 Last Updated: 11 June, 2024