function NotificationMsg({ text, state }) {    return (      <div>        {{          info: <Message text={text} />,          warning: <Message text={text} />,        }[state]}      </div>    );  }

import React, { Component } from 'react';    // Message Component   function Message(props)   {       if (props.isLoggedIn)           return <h1>Welcome Back!!!</h1>;       else          return <h1>Please Login First!!!</h1>;   }   // Login Component   function Login(props)   {      return(              <button onClick = {props.clickInfo}> Login </button>          );   }    // Logout Component   function Logout(props)   {       return(              <button onClick = {props.clickInfo}> Logout </button>          );   }   class App extends Component{       constructor(props)       {           super(props);            this.handleLogin = this.handleLogin.bind(this);            this.handleLogout = this.handleLogout.bind(this);         this.state = {isLoggedIn : false};       }      handleLogin()       {           this.setState({isLoggedIn : true});       }       handleLogout()       {           this.setState({isLoggedIn : false});       }       render(){           return(               <div>           <h1> Conditional Rendering Example </h1>                  <Message isLoggedIn = {this.state.isLoggedIn}/>                               {                       (this.state.isLoggedIn)?(                       <Logout clickInfo = {this.handleLogout} />                       ) : (                       <Login clickInfo = {this.handleLogin} />                       )                   }               </div>                     );       }   }   export default App;    Output:When you execute the above code, you will get the following screen.

.then((response) => { if (!response.ok) { throw new Error('Network response was not ok'); } return response.json(); }) .then((data) => { console.log('Success:', data); }) .catch((error) => { console.error('Error:', error); }); };

introduction to express.js

What is the output of the following code snippet?function ParentComponent() { const data = { name: "John Doe", age: 30 }; return ( <div> <ChildComponent data={data}> <h3>This is a child element</h3> </ChildComponent> </div> ); } function ChildComponent(props) { const { name, age } = props.data; return ( <div> <h2>Name: {name}</h2> <h2>Age: {age}</h2> {props.children} </div> ); }AName: John Doe Age: 30This is a child elementBName: undefined Age: undefinedThis is a child elementCName: null Age: nullThis is a child elementDSyntax error

What will be the output of the following code snippet?import React, { useState, useEffect } from "react";import axios from "axios";function App() { const [users, setUsers] = useState([]); const [error, setError] = useState(""); useEffect(() => {   async function getUsers() {     try {       const result = await axios.get("https://jsonplaceholder.typicode.com/users");       setUsers(result.data);     } catch (error) {       setError(error.message);     }   }   getUsers(); }, []); return (   <div>     {error && <div>{error}</div>}     {users.map((user) => (       <div key={user.id}>{user.name}</div>     ))}   </div> );}export default App;AIt will display the list of users fetched from the API (if no error is thrown)BIt will throw an errorCIt will display the error message returned from the API (if error is thrown from API)DBoth A and C