useRefis one of the standard hooks provided by React. It will return an object that you can use during the whole lifecycle of the component. The main use case for theuseRefhook is to access a DOM child directly. I’ll show exactly how to do that in another section. ...
In the example above, a button is created to make a counter of 1 in the value of an element created usingReact.useRef()method. The initial value is set to 0 which will be incremented at the click of a button. Using the counter property ofcounterRefwe can use the current value of the...
Common use cases of ReactuseRefhook Obviously, the above example is a little too simple. In real world use case, you'd probably not use useRef like that. So howwouldyou use it? Accessing DOM elements directly React was specifically made to avoid this. Direct DOM access is a bad idea for...
For instance, you can use refs to give focus on an input field when a button is clicked:import * as React from "react"; import ReactDOM from "react-dom"; export default function App() { const ref = React.useRef(); function focus() { ref.current.focus(); } return ( Focus...
Find out what the useRef React hook is useful for, and how to work with it!Check out my React hooks introduction first, if you’re new to them.One React hook I sometimes use is useRef.import React, { useRef } from 'react'This hook allows us to access a DOM element imperatively....
useEffect React hook, how to use Find out what the useEffect React hook is useful for, and how to work with it!Check out my React hooks introduction first, if you’re new to them.One React hook I use a lot is useEffect.import React, { useEffect } from 'react'...
import { useReducer, useEffect, useRef } from 'react'; function Stopwatch() { const [state, dispatch] = useReducer(reducer, initialState); const idRef = useRef(0); useEffect(() => { if (!state.isRunning) { return; } idRef.current = setInterval(() => dispatch({ type: 'tick' }...
forwardRefis needed to expose a DOM node in a component to its parent component. For instance, we write: import { forwardRef, useRef } from "react"; const CustomInput = forwardRef((props, ref) => { const { label } = props; return ( ...
To remove an event listener in React: Add an event listener in the useEffect hook. Return a function from the useEffect hook. When the component unmounts, remove the event listener using the removeEventListener method. import {useRef, useEffect} from
useRef is a versatile hook in React that offers a wide range of applications beyond just interacting with the DOM. You can use it to manage focus, trigger animations, compare previous values, or even create custom caching mechanisms. It's a valuable tool in your React toolkit for solving a...