assertExists | /test.deps.ts | justaos_utils@v1.8.0

x/justaos_utils/test.deps.ts>assertExists

Common utility functions used across projects

function assertExists

import { assertExists } from "https://deno.land/x/justaos_utils@v1.8.0/test.deps.ts";

assertExists<T>(actual: T, msg?: string): asserts actual is NonNullable<T>

Make an assertion that actual is not null or undefined. If not then throw.

Examples

Example 1

import { assertExists } from "https://deno.land/std@0.224.0/assert/assert_exists.ts";

assertExists("something"); // Doesn't throw
assertExists(undefined); // Throws

Type Parameters

Parameters

actual: T

optional

msg: string

Returns

asserts actual is NonNullable<T>