AssertFalse

import { AssertFalse } from "jsr:@ende/testing/types";

type alias

type AssertFalse<T extends false> = never

Asserts at compile time that the provided type argument's type resolves to false.

Example: Usage

import { AssertFalse, IsNever } from "@ende/testing/types";

const result = 1 as string | number | null;

type doTest = AssertFalse<IsNever<typeof result>>;

Source