Discrepancy between Tutorial and API docs for Actions

[varholak-peter]

Description

The Tutorial mentions that destroy function must be present in the object returned from an Action, however, the API docs label the return value of an Action as optional. (Or when an action does return an object the destroy property may be optional as well.)

I believe the preferred solution would be to remove the "must have" from the tutorial instead of enforcing the return value.

Quick links

Tutorial: https://svelte.dev/tutorial/actions
Docs: https://svelte.dev/docs#Actions