@ -168,6 +168,24 @@ In rare cases, you may need to run code _before_ the DOM updates. For this we ca
Previously, you would have used `beforeUpdate`, which — like `afterUpdate` — is deprecated in Svelte 5.
Previously, you would have used `beforeUpdate`, which — like `afterUpdate` — is deprecated in Svelte 5.
## `$effect.active`
The `$effect.active` rune is an advanced feature that tells you whether or not the code is running inside an effect or inside your template ([demo](/#H4sIAAAAAAAAE3XP0QrCMAwF0F-JRXAD595rLfgdzodRUyl0bVgzQcb-3VYFQfExl5tDMgvrPCYhT7MI_YBCiiOR2Aq-UxnSDT1jnlOcRlMSlczoiHUXOjYxpOhx5-O12rgAJg4UAwaGhDyR3Gxhjdai4V1v2N2wqus9tC3Y3ifMQjbehaqq4aBhLtEv_Or893icCsdLve-Caj8nBkU67zMO5HtGCfM3sKiWNKhV0zwVaBqd3x3ixVmHFyFLuJyXB-moOe8pAQAA)):