assertFalse | /assert/mod.ts | std@0.208.0

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Deno standard library

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function assertFalse

Re-export

import { assertFalse } from "https://deno.land/std@0.208.0/assert/mod.ts";

assertFalse(expr: unknown, msg?): asserts expr is Falsy

Make an assertion, error will be thrown if expr have truthy value.

Parameters

expr: unknown

optional

msg = [UNSUPPORTED]

asserts expr is Falsy