Skip to main content
Deno 2 is finally here 🎉️
Learn more
Go to Latest
The Standard Library has been moved to JSR. See the blog post for details.
function assertInstanceOf
import { assertInstanceOf } from "https://deno.land/std@0.180.0/testing/asserts.ts";

Make an assertion that obj is an instance of type. If not then throw.

Type Parameters

T extends AnyConstructor

Parameters

actual: unknown
expectedType: T
optional
msg = [UNSUPPORTED]

Returns

asserts actual is GetConstructorType<T>