function isNilimport { isNil } from "https://deno.land/x/isx@1.0.0-beta.18/mod.ts"; isNil(value: unknown): value is null | undefinedWhether the value is nill or not. Parametersvalue: unknown Any value. import { isNil } from "https://deno.land/x/isx@$VERSION/mod.ts" import { assertEquals } from "https://deno.land/std@$VERSION/testing/asserts.ts" assertEquals(isNil(null), true) assertEquals(isNil(undefined), true) assertEquals(isNil({}), false) Returnsvalue is null | undefined