@humanspeak/svelte-subscribe/dist/derivedKeys.js

Subscribe to non top-level stores in your Svelte templates

import { derived } from 'svelte/store';
export const derivedKeys = (storeMap) => {
    // Freeze the order of entries.
    const entries = Object.entries(storeMap);
    const keys = entries.map(([key]) => key);
    return derived(entries.map(([, store]) => store), ($stores) => {
        return Object.fromEntries($stores.map((store, idx) => [keys[idx], store]));
    });
};