Théo Pomies theopomies

📱

Building & Shipping

CTO, Fullstack Eng. React+Native, Typescript, Rust, Nix, Catholic, Bitcoiner

theopomies / mini-zustand.ts

Created February 3, 2025 16:57

mini-zustand.ts

	import { useSyncExternalStore } from "react";

	export function createStore<T extends object>(init: StoreInit<T>): UseStore<T> {
	const listeners = new Set<Listener>();

	const setter: Setter<T> = (setState) => {
	const newStoreProps =
	typeof setState == "function" ? setState(state) : setState;
	state = Object.freeze(Object.assign({}, state, newStoreProps));
	listeners.forEach((listener) => listener());