debounce

---

useDebounce()

npm i @react-hook/debounce

---

A React hook for debouncing setState and other callbacks

Quick Start

import {useDebounce, useDebounceCallback} from '@react-hook/debounce'

const Component = (props) => {
  // at a basic level, used just like useState
  const [value, setValue] = useDebounce('initialValue')
}

const useMyCallback = (initialState, wait, leading) => {
  // this is the same code useDebounce() uses to debounce setState
  const [state, setState] = useState(initialState)
  return [state, useDebounceCallback(setState, wait, leading)]
}

API

useDebounce(initialState, wait?, leading?)

A hook that acts just like React.useState, but with a setState function that is only invoked after the wait time in ms has been exceeded between calls.

export const useDebounce = <State>(
  initialState: State | (() => State),
  wait?: number,
  leading?: boolean
): [State, Dispatch<SetStateAction<State>>]

Options

Property	Type	Default	Description
initialState	State | (() => State)		The initial state provided to React.useState
wait	number	100	The amount of time in ms you want to wait after the latest call before setting a new state.
leading	boolean	false	Calls setState on the leading edge (right away). When false, setState will not be called until the next frame is due

Returns [state, setStateDebounced, setStateImmediate]

Variable	Type	Description
state	State	The current value in state
setStateDebounced	Function	A debounced setState callback
setStateImmediate	Function	The regular, immediate setState callback

Note: Using setStateImmediate does not cancel a queued setStateDebounced calls, i.e., the setStateDebounced will still take effect once its wait time is over. If needed, cancelling behavior could typically still be achieved by calling both setStateImmediate and setStateDebounced with the same value.

---

useDebounceCallback(callback, wait?, leading?)

A hook that will invoke its callback only after wait time in ms has been exceeded between calls.

export const useDebounceCallback = <CallbackArgs extends any[]>(
  callback: (...args: CallbackArgs) => void,
  wait = 100,
  leading = false
): ((...args: CallbackArgs) => void)

Options

Property	Type	Default	Description
callback	(...args: CallbackArgs) => void		This is the callback you want to debounce. You need to wrap closures/unstable callbacks in useCallback() so that they are stable, otherwise throttling will break between renders.
wait	number	100	Defines the amount of time you want setState to wait after the last received action before executing
leading	boolean	false	Calls setState on the leading edge (right away). When false, setState will not be called until the next frame is due

Returns debouncedCallback

Variable	Type	Description
debouncedCallback	(...args: CallbackArgs) => void	A debounced version of your callback

LICENSE

MIT