useUpdateEffect

API

import useUpdateEffect from '@restart/hooks/useUpdateEffect'

useUpdateEffect(fn: EffectCallback, deps: DependencyList) => void
Runs an effect only when the dependencies have changed, skipping the initial "on mount" run. Caution, if the dependency list never changes, the effect is never run
```
const ref = useRef<HTMLInput>(null);
 // focuses an element only if the focus changes, and not on mount
 useUpdateEffect(() => {
   const element = ref.current?.children[focusedIdx] as HTMLElement
   element?.focus()
 }, [focusedIndex])
```
Parameters
- fnEffectCallback
- depsDependencyList
Return Value void