Hey everyone, beginner coder here following a CodeWithAntonio React tutorial and trying to replicate it in Sveltekit (doing well thus far).

I noticed that React requires a key for iterative structures, e.g:

<units.map((unit) => (
<div key={unit.id}>
<Unit />
</div>

Before I gave up learning React, I think I learned that this key helps React when modifying iterative structures to ensure it updates the right state for the right elements, etc. (or something like that). Do I need to include some sort of key in my {#each} blocks, etc. in Svelte? Or does Svelte work some magic here in the background for me? E.g:

{#each units as unit}
<div key={???}>
<Unit />
</div>
{#each}