# 
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× **[DOCS](https://react-hookz.github.io/web/)** × **[DISCORD](https://discord.gg/Fjwphtu65f)** ×
**[CHANGELOG](https://github.com/react-hookz/web/blob/master/CHANGELOG.md)** ×
---
`@react-hookz/web` is a library of general-purpose React hooks built with care and SSR compatibility
in mind.
## Install
This one is pretty simple, everyone knows what to do:
```shell
npm i @react-hookz/web
# or
yarn add @react-hookz/web
```
As hooks was introduced to the world in React 16.8, `@react-hookz/web` requires - you guessed it -
`react` and `react-dom` 16.8+.
Also, as React does not support IE, `@react-hookz/web` does not do so either. You'll have to
transpile your `node-modules` in order to run in IE.
## Usage
This package provides three levels of compilation:
1. **Main**, the `/cjs` folder — CommonJS modules, with ES5 lang level.
2. **ESM**, the `/esm` folder — it is ES modules (browser compatible), with ES5 lang level.
3. **ESNext**, the `/esnext` folder — it is ES modules (browser compatible), with ESNext lang level.
So, if you need the `useMountEffect` hook, depending on your needs, you can import in three ways
(there are actually more, but these are the three most common):
```ts
// in case you need cjs modules
import { useMountEffect } from '@react-hookz/web';
// in case you need esm modules
import { useMountEffect } from '@react-hookz/web/esm';
// in case you want all the recent ES features
import { useMountEffect } from '@react-hookz/web/esnext';
```
## Migrating from react-use
`@react-hookz/web` was built as a [spiritual successor](https://github.com/streamich/react-use/issues/1974) of `react-use` by one of its former maintainers.
Coming from `react-use`? Check out our
[migration guide](https://react-hookz.github.io/web/?path=/docs/migrating-from-react-use--page).
## Hooks list
- #### Callback
- [**`useDebouncedCallback`**](https://react-hookz.github.io/web/?path=/docs/callback-usedebouncedcallback--example)
— Makes passed function debounced, otherwise acts like `useCallback`.
- [**`useRafCallback`**](https://react-hookz.github.io/web/?path=/docs/callback-userafcallback--example)
— Makes passed function to be called within next animation frame.
- [**`useThrottledCallback`**](https://react-hookz.github.io/web/?path=/docs/callback-usethrottledcallback--example)
— Makes passed function throttled, otherwise acts like `useCallback`.
- #### Lifecycle
- [**`useConditionalEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-useconditionaleffect--example)
— Like `useEffect` but callback invoked only if conditions match predicate.
- [**`useCustomCompareEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usecustomcompareeffect--example)
— Like `useEffect` but uses provided comparator function to validate dependency changes.
- [**`useDebouncedEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usedebouncedeffect--example)
— Like `useEffect`, but passed function is debounced.
- [**`useDeepCompareEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usedeepcompareeffect--example)
— Like `useEffect` but uses `@react-hookz/deep-equal` comparator function to validate deep
dependency changes.
- [**`useFirstMountState`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usefirstmountstate--example)
— Return boolean that is `true` only on first render.
- [**`useIntervalEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-useintervaleffect--example)
— Like `setInterval` but in form of react hook.
- [**`useIsMounted`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-useismounted--example)
— Returns function that yields current mount state.
- [**`useIsomorphicLayoutEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-useisomorphiclayouteffect--page)
— `useLayoutEffect` for browser with fallback to `useEffect` for SSR.
- [**`useMountEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usemounteffect--example)
— Run effect only when component first-mounted.
- [**`useRafEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-useRafEffect--example)
— Like `React.useEffect`, but effect is only run within animation frame.
- [**`useRerender`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usererender--example)
— Return callback that re-renders component.
- [**`useThrottledEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usethrottledeffect--example)
— Like `useEffect`, but passed function is throttled.
- [**`useTimeoutEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-usetimeouteffect--example)
— Like `setTimeout`, but in the form of a react hook.
- [**`useUnmountEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-useunmounteffect--example)
— Run effect only when component unmounted.
- [**`useUpdateEffect`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-useupdateeffect--example)
— Effect hook that ignores the first render (not invoked on mount).
- [**`useLifecycleLogger`**](https://react-hookz.github.io/web/?path=/docs/lifecycle-uselifecycleLogger--example)
— This hook provides a console log when the component mounts, updates and unmounts.
- #### State
- [**`useControlledRerenderState`**](https://react-hookz.github.io/web/?path=/docs/state-usecontrolledrerenderstate--example)
— Like `React.useState`, but its state setter accepts extra argument, that allows to cancel
rerender.
- [**`useCounter`**](https://react-hookz.github.io/web/?path=/docs/state-usecounter--example)
— Tracks a numeric value and offers functions for manipulating it.
- [**`useDebouncedState`**](https://react-hookz.github.io/web/?path=/docs/state-usedebouncedstate--example)
— Like `useSafeState` but its state setter is debounced.
- [**`useFunctionalState`**](https://react-hookz.github.io/web/?path=/docs/state-usefunctionalstate--page)
— Like `useState` but instead of raw state, state getter returned.
- [**`useList`**](https://react-hookz.github.io/web/?path=/docs/state-uselist--example)
— Tracks a list and offers functions for manipulating it.
- [**`useMap`**](https://react-hookz.github.io/web/?path=/docs/state-usemap--example) — Tracks the
state of a `Map`.
- [**`useMediatedState`**](https://react-hookz.github.io/web/?path=/docs/state-usemediatedstate--example)
— Like `useState`, but every value set is passed through a mediator function.
- [**`usePrevious`**](https://react-hookz.github.io/web/?path=/docs/state-useprevious--example) —
Returns the value passed to the hook on previous render.
- [**`usePreviousDistinct`**](https://react-hookz.github.io/web/?path=/docs/state-usepreviousdistinct--example) —
Returns the most recent distinct value passed to the hook on previous render.
- [**`useRafState`**](https://react-hookz.github.io/web/?path=/docs/state-userafstate--example) —
Like `React.useState`, but state is only updated within animation frame.
- [**`useRenderCount`**](https://react-hookz.github.io/web/?path=/docs/state-userendercount--example) —
Tracks component's render count including first render.
- [**`useSafeState`**](https://react-hookz.github.io/web/?path=/docs/state-usesafestate--page) —
Like `useState`, but its state setter is guarded against sets on unmounted component.
- [**`useSet`**](https://react-hookz.github.io/web/?path=/docs/state-useset--example) — Tracks the
state of a `Set`.
- [**`useToggle`**](https://react-hookz.github.io/web/?path=/docs/state-usetoggle--example) — Like
`useState`, but can only become `true` or `false`.
- [**`useThrottledState`**](https://react-hookz.github.io/web/?path=/docs/state-usethrottledstate--example)
— Like `useSafeState` but its state setter is throttled.
- [**`useValidator`**](https://react-hookz.github.io/web/?path=/docs/state-usevalidator--example)
— Performs validation when any of provided dependencies has changed.
- #### Navigator
- [**`useNetworkState`**](https://react-hookz.github.io/web/?path=/docs/navigator-usenetworkstate--example)
— Tracks the state of browser's network connection.
- [**`useVibrate`**](https://react-hookz.github.io/web/?path=/docs/navigator-usevibrate--example)
— Provides vibration feedback using the Vibration API.
- [**`usePermission`**](https://react-hookz.github.io/web/?path=/docs/navigator-usepermission--example)
— Tracks a permission state.
- #### Miscellaneous
- [**`useSyncedRef`**](https://react-hookz.github.io/web/?path=/docs/miscellaneous-usesyncedref--example)
— Like `useRef`, but it returns immutable ref that contains actual value.
- [**`useCustomCompareMemo`**](https://react-hookz.github.io/web/?path=/docs/miscellaneous-useCustomCompareMemo--example)
— Like useMemo but uses provided comparator function to validate dependency changes.
- [**`useDeepCompareMemo`**](https://react-hookz.github.io/web/?path=/docs/miscellaneous-useDeepCompareMemo--example)
— Like `useMemo` but uses `@react-hookz/deep-equal` comparator function to validate deep
dependency changes.
- [**`useHookableRef`**](https://react-hookz.github.io/web/?path=/docs/miscellaneous-usehookableref--example)
— Like `useRef` but it is possible to define get and set handlers.
- #### Side-effect
- [**`useAsync`**](https://react-hookz.github.io/web/?path=/docs/side-effect-useasync--example) —
Executes provided async function and tracks its result and error.
- [**`useAsyncAbortable`**](https://react-hookz.github.io/web/?path=/docs/side-effect-useasyncabortable--example)
— Like `useAsync`, but also provides `AbortSignal` as first function argument to async function.
- [**`useCookieValue`**](https://react-hookz.github.io/web/?path=/docs/side-effect-usecookievalue--example)
— Manages a single cookie.
- [**`useLocalStorageValue`**](https://react-hookz.github.io/web/?path=/docs/side-effect-uselocalstoragevalue--example)
— Manages a single LocalStorage key.
- [**`useSessionStorageValue`**](https://react-hookz.github.io/web/?path=/docs/side-effect-usesessionstoragevalue--example)
— Manages a single SessionStorage key.
- #### Sensor
- [**`useIntersectionObserver`**](https://react-hookz.github.io/web/?path=/docs/sensor-useintersectionobserver--example)
— Observe changes in the intersection of a target element with an ancestor element or with a
top-level document's viewport.
- [**`useMeasure`**](https://react-hookz.github.io/web/?path=/docs/sensor-usemeasure--example) —
Uses ResizeObserver to track element dimensions and re-render component when they change.
- [**`useMediaQuery`**](https://react-hookz.github.io/web/?path=/docs/sensor-usemediaquery--example)
— Tracks the state of CSS media query.
- [**`useResizeObserver`**](https://react-hookz.github.io/web/?path=/docs/sensor-useresizeobserver--example)
— Invokes a callback whenever ResizeObserver detects a change to target's size.
- [**`useScreenOrientation`**](https://react-hookz.github.io/web/?path=/docs/sensor-usescreenorientation--example)
— Checks if screen is in `portrait` or `landscape` orientation and automatically re-renders on
orientation change.
- #### Dom
- [**`useClickOutside`**](https://react-hookz.github.io/web/?path=/docs/dom-useclickoutside--example)
— Triggers callback when user clicks outside the target element.
- [**`useEventListener`**](https://react-hookz.github.io/web/?path=/docs/dom-useeventlistener--example)
— Subscribes an event listener to the target, and automatically unsubscribes it on unmount.
- [**`useKeyboardEvent`**](https://react-hookz.github.io/web/?path=/docs/dom-usekeyboardevent--example)
— Executes callback when keyboard event occurred on target.
- [**`useWindowSize`**](https://react-hookz.github.io/web/?path=/docs/dom-usewindowsize--example)
— Tracks window inner dimensions.
## Contributors
