See how to use Svelte 5's new runes system to declare reactive states and compare them to the existing approach to reactivity in Svelte 4.

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Svelte 5 introduces 'runes,' a new approach to manage reactivity, offering additional functions such as $state, $derived, $effect, and $inspect for better handling of reactive states, arrays, and objects. While the runes system has drawn both praise and criticism, it aims to solve issues present in Svelte 4, like shallow reactivity and manual updates. Svelte 5 also updates event handling, adds snippets for reusable markup within components, and provides new functions for manual DOM manipulations.

Exploring the magic of runes in Svelte 5

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Comparing reactivity in Svelte with and without runes

<p>Runes, signals, provide an amazing development experience without sacrificing the performance of the app.</p>
<p>I think both solid and svelte are worth a try for web developers.</p>
