/Javascript/React/This setstate previous state react

This setstate previous state react

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 (
    <div>
      <h1>{count}</h1>
      <button onClick={() => setTimeout(() => setCount(count + 1), 2000)}>
        Delayed Counter (basic)
      </button>
      <button onClick={() => setTimeout(() => setCount(x => x + 1), 2000)}>
        Delayed Counter (functional)
      </button>
      <button onClick={() => setCount(count + 1)}>Immediate Counter</button>
    </div>
  );
}

const rootElement = document.getElementById("root");
ReactDOM.render(<Counter />, rootElement);

Source: stackoverflow.com

This setstate previous state react

state = {count: 0}

increment = () => { 
this.setState(previousState => ({
count: previousState.count + 1
}))
}

Similar codes

0 vote178 views2 answers
Hide header title in react navigation Drawer navigation
Javascript React
0 vote199 views1 answer
Altenrive for react native
Javascript React
2 votes259 views1 answer
Set dynamic route in link react js
Javascript React
0 vote212 views1 answer
Heroku buildpacks with react
Javascript React
0 vote181 views1 answer
Close button react
Javascript React
1 vote202 views1 answer
Vim react snippets
Javascript React
1 vote190 views1 answer
React toggle class
Javascript React
0 vote191 views1 answer
Handle an input with React hooks
Javascript React
5 votes133 views2 answers
React hook form
Javascript React
0 vote202 views3 answers
Line 32:18: 'Link' is not defined react/jsx-no-undef
Javascript React