isMatching | /mod.ts | fuzzy_octo_guacamole@v5.0.1

function isMatching

import { isMatching } from "https://deno.land/x/fuzzy_octo_guacamole@v5.0.1/mod.ts";

isMatching>(pattern: p): (value: unknown) => value is P.infer

isMatching takes pattern and returns a type guard function, cheching if a value matches this pattern.

isMatching>(pattern: p, value: unknown): value is P.infer

isMatching takes pattern and a value and checks if the value matches this pattern.

isMatching takes pattern and returns a type guard function, cheching if a value matches this pattern.

Examples

const hasName = isMatching({ name: P.string })

declare let input: unknown

if (hasName(input)) { // input inferred as { name: string } return input.name }

p extends Pattern<unknown>

pattern: p

(value: unknown) => value is P.infer

isMatching takes pattern and a value and checks if the value matches this pattern.

declare let input: unknown

if (isMatching({ name: P.string }, input)) { // input inferred as { name: string } return input.name }

p extends Pattern<unknown>

pattern: p

value: unknown

value is P.infer