assert | /std/testing/asserts.ts | deno@v1.0.0

A modern runtime for JavaScript and TypeScript.

function assert

import { assert } from "https://deno.land/x/deno@v1.0.0/std/testing/asserts.ts";

assert(expr: unknown, msg?): asserts expr

Make an assertion, if not true, then throw.

Parameters

expr: unknown

optional

msg = [UNSUPPORTED]

asserts expr