Schedules a callback to run immediately before the component is updated after any state change.
The first time the callback runs will be before the initial onMount
onMount
https://svelte.dev/docs/svelte#beforeupdate
Schedules a callback to run immediately before the component is updated after any state change.
The first time the callback runs will be before the initial
onMounthttps://svelte.dev/docs/svelte#beforeupdate