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x/proc/tests/deps/asserts.ts>assertExists

A high-level way to run child processes that is easy, flexible, powerful, and prevents resource leaks.
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function assertExists
import { assertExists } from "https://deno.land/x/proc@0.20.17/tests/deps/asserts.ts";

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

Parameters

actual: T
optional
msg: string

Returns

asserts actual is NonNullable<T>