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In a previous post I explained why passing a Svelte rune to functions doesn't update the value but here's how you can wrap or box a value which can be passed and updated using a couple of lines of code. 😎

11/2/25, 7:00 pm1 repost12 likes

matia 🇭🇷

@joyofcode.xyz

11 Feb 2025

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matia 🇭🇷@joyofcode.xyz

Here's why passing a Svelte rune to a function warns you about never updating. If you're not using proxied state the primitive value you're passing is the actual value at the time it was created. Svelte catches this and knows you probably want to use a closure to update it.