What are some advanced techniques for using Svelte stores?

What are some advanced techniques for using Svelte stores?

You can use derived stores, writable stores, and even custom stores to manage complex state. Would you like examples?

Yes, please provide an example of a derived store.

Sure! A derived store can be created using the derived function. For instance, if you have a writable store for a list of items, you can create a derived store to calculate the total count of those items.

How do I create a custom store?

To create a custom store, you can define a function that returns an object with subscribe, set, and update methods. This allows you to encapsulate your logic.

Can you show me a simple custom store example?

Absolutely! Here's a simple custom store that manages a counter:

function createCounter() {
    let count = 0;
    return {
        subscribe: (run) => {
            run(count);
            return () => {};
        },
        increment: () => { count += 1; },
        decrement: () => { count -= 1; }
    };
}
const counter = createCounter();