Hooks

usePrevious

Returns the previous value of a variable from the last render.

Usage

const prevCount = usePrevious(count)
const direction = count > (prevCount ?? 0) ? "up" : "down"

npx visor add use-previous

Name	Type	Required	Default	Description
`value`	`T`	Yes	--	The value to track across renders.

Name	Type	Description
`previousValue`	`T \| undefined`	The value from the previous render, or undefined on the first render.

useMediaQuery

Subscribes to a CSS media query and returns whether it currently matches.

useSlideEngine

Provides smooth-scroll navigation between sections with scroll-snap coordination and debounced locking.