how to better understand `createDeferred`?

💙Beginner

Solid API

The doc says

idle

idle

, what is the difference between

requestIdleCallback

requestIdleCallback

and this? Should it be considerred as reactive version of

requestIdleCallback

requestIdleCallback

?

Moreover, after searching across gh and discord channels, there is few examples to show how to use

createDeferred

createDeferred

correctly. Is there any best-practice or learning resource about it?