<></> in react code example

Example 1: react style ternary operator

<img 
  src={this.state.photo} 
  alt="" 
  style={ isLoggedIn ? { display:'block'} : {display : 'none'} }  
/>

// or

<img
  src={this.state.photo} 
  alt=""
  style={ { display: isLoggedIn ? 'block' : 'none' } }  
/>

Example 2: diagram how props are passed in react

import React, { Component } from 'react'; class App extends Component {  render() {    const greeting = 'Welcome to React';     return (      <div>        <Greeting greeting={greeting} />      </div>    );  }} class Greeting extends Component {  render() {    return <h1>{this.props.greeting}</h1>;  }} export default App;