Pattern.not | /mod.ts | fuzzy_octo_guacamole@v2.0.0

function Pattern.not

import { Pattern } from "https://deno.land/x/fuzzy_octo_guacamole@v2.0.0/mod.ts";
const { not } = Pattern;

not<input, p extends unknown extends input ? UnknownPattern : Pattern<input> | undefined>(pattern: p): NotP<input, p>

P.not(pattern) returns a pattern which matches if the sub pattern doesn't match.

Examples

match<{ a: string | number }>(value) .with({ a: P.not(P.string) }, (x) => 'will match { a: number }' )

input

p extends unknown extends input ? UnknownPattern : Pattern<input> | undefined

pattern: p

NotP<input, p>