Subscription-based Form State Management
"Svelte Final Form is a thin Svelte wrapper for Final Form, which is a subscriptions-based form state management library that uses the Observer pattern.
By default, Svelte Final Form subscribes to all changes, but if you want to fine tune your form to optimized blazing-fast perfection, you may specify only the form state that you care about for rendering your gorgeous UI.
You can think of it a little like GraphQL's feature of only fetching the data your component needs to render, and nothing else."
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