isOk | /src/result/mod.ts | ahh@v0.11.0

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Opinionated idiomatic type-safety functions.

function isOk

import { isOk } from "https://deno.land/x/ahh@v0.11.0/src/result/mod.ts";

isOk<T, E extends Error>(res: Result<T, E>): res is Ok<T>

Returns whether res is an Ok.

Examples

Example 1

import { default as R } from "./mod.ts";

console.log(R.isOk(1)); // true
console.log(R.isOk(Error())); // false

E extends Error

res: Result<T, E>

res is Ok<T>