How can I handle errors in Svelte stores?

How can I handle errors in Svelte stores?

In Svelte, you can handle errors in stores by using a try-catch block within your store's logic. This allows you to catch any errors that occur during state updates.

Can you show me an example of that?

Sure! Here's a simple example:

import { writable } from 'svelte/store';

const myStore = writable(0);

function updateStore(value) {
    try {
        if (typeof value !== 'number') throw new Error('Value must be a number');
        myStore.set(value);
    } catch (error) {
        console.error('Error updating store:', error);
    }
}

What if I want to display an error message in the UI?

You can create a separate writable store for the error message and update it in the catch block. Then, bind it to your UI to display the error.

That makes sense! Thanks for the help!