object in react hooks code example

Example 1: prevstate in usestate

const [prevState, setState] = React.useState([]);

setState(prevState => [...prevState, 'somedata'] );

Example 2: when to use previous state in useState

import React, { useState } from "react";
import ReactDOM from "react-dom";

function Counter() {
  const [count, setCount] = useState(0);

  return (
    

{count}

); } const rootElement = document.getElementById("root"); ReactDOM.render(, rootElement);

Tags:

Misc Example