React.useRef () explained

React.useRef () explained

The best explanation possible to understand useRef in react

๐Ÿค” What is useRef?

It is just like useState, used to store the data. But unlike useState which triggers an update(re-renders) whenever the state change, useRef doesn't trigger an update.

  1. A data store just like useState
  2. Doesnโ€™t cause re-renders unlike useState
  3. Easily exposes DOM elements (access them directly)
  4. Has single property called current
  5. Used to store the previous state
  6. Used to pass the data through the re-renders

useState ๐Ÿ†š useRef

Trying to count the number of time the app renders on changing the value in the input box

โŒ Counting renders using useState

import React, { useEffect, useState } from "react";

import "./styles.css";
export default function App() {
const [name, setName] = useState("");
const [countRender, setCountRender] = useState(0);
useEffect(() => {
setCountRender((prevRender) => prevRender + 1);
}, [countRender]);
return (
<div className="App">
<input value={name} onChange={(e) => setName(} />

This is not the right way, because when the app re-renders the countRender changes which again causes the app to re-render thus forming an infinite loop.

react useref reactjs

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