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How to add two numbers in ReactJS

2 min read

In this tutorials will teach How to add two numbers in ReactJS.

Create the folder which name is components inside the components folder  create the file AddNumbers.js file.


import { useState } from "react";

function AddNumber() {

    const [num1, setNum1] = useState();
    const [num2, setNum2] = useState();
    const [tot, setTot] =  useState(); // take tot in a state

function handleClick()
  setTot(Number(num1) + Number(num2)); // set number to the state

    return (
        <h1>Add Two Numbers</h1>

        <label>Number 1</label>
        <input type="text" name="num1" class="form-control" onChange={(event) =>
        <label>Number 2</label>
        <input type="text" name="num2"  class="form-control" onChange={(event) =>

        <input type="text"   class="form-control" value={ tot }></input>   
        <button onClick={handleClick}  class="btn btn-warning mt-4"> Click Me</button>

  export default AddNumber;

Install the Bootstrap in React

npm i react-bootstrap

In order to run the app the call the components in side the App.js


import AddNumber from './components/AddNumber';
import "./App.css"
import 'bootstrap/dist/css/bootstrap.min.css';

function App() {

  return (
    <div className='App'>
          <AddNumber />

i have attached the video link below. which will do this tutorials step by step


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