Arrow Function in React JS

• Create Components folder under src folder
• Add ArrowFunctions.js file and add below Code

import React, { Component } from "react";

class ArrowFunctions extends Component {

constructor(props) {

super(props);

this.state = {

Name: "Adi"

};

}

changeName = () => {

this.setState({ Name: "Adi JC" });

};

render() {

return (

<div>

Arrow Functions

<p>{this.state.Name}</p>

<button onClick={this.changeName}>Click me</button>

</div>

);

}

}

export default ArrowFunctions;

• Open index.js file and update code as below

import React from "react";

import ReactDOM from "react-dom";

import "./styles.css";

import ArrowFunctions from "./Components/ArrowFunctions";

function App() {

return (

<div className="App">

<ArrowFunctions />

</div>

);

}

const rootElement = document.getElementById("root");

ReactDOM.render(<App />, rootElement);

Output: