cache / cachify

cache and cachify are aliases for memoize. They create a cached version of an async function, storing results by argument key.

See memoize for full documentation.

Import

Root package:

import { cache, cachify } from "@vgerbot/async";

Module subpath:

import { cache, cachify } from "@vgerbot/async/utils";

Leaf subpath:

import { cache } from "@vgerbot/async/utils/cache";

Quick example

import { cache } from "@vgerbot/async";

const fetchUser = cache(async (userId: string, token) => {
  const res = await token.wrap(fetch(`/api/users/${userId}`));
  return res.json();
});

// First call fetches
const user1 = await fetchUser("123").promise;

// Second call returns cached result
const user2 = await fetchUser("123").promise;

console.log(user1 === user2); // true

Related APIs

• memoize — the primary API (full documentation).
• once — executes a function only once (no argument-based caching).