Svelte LocalStorageStore

LocalStorageStore

import type {Writable} from "svelte/store";
import {writable} from "svelte/store";

export function lsWritable<T>(path: string, default_value: T): Writable<T> {
    const store = writable<T>(localStorage.getItem(path) ? JSON.parse(localStorage.getItem(path)) as T : default_value);
    store.subscribe(x => {
        localStorage.setItem(path, JSON.stringify(x));
    });
    return store;
}