what is props in react code example

Example 1: props in react

function Welcome(props) {
  return 
Hello, {props.name}
;
}

function App() {
  return (
    

                      
  );
}

ReactDOM.render(
  ,
  document.getElementById('root')
);

Example 2: props in react app

/* PASSING THE PROPS to the 'Greeting' component */
const expression = 'Happy';
 // statement and expression are the props (ie. arguments) we are passing to Greeting component

/* USING THE PROPS in the child component */
class Greeting extends Component {
  render() {
    return 
{this.props.statement} I am feeling {this.props.expression} today!
;
  }
}

--------------------------------------------
function Welcome(props) {
  return 
Hello, {props.name}
;
}

const element = ;
ReactDOM.render(
  element,
  document.getElementById('root')
);

Example 3: react class and props example

import React, { Component } from 'react'
import './TourList.scss';
import Tour  from '../Tour/Tour';
import { tourData } from './tourData';
export default class TourList extends Component {
    state={
        tours:tourData
    }
    render() {
        const {tours}=this.state
        

        return (
            

            {tours.map(tour=>{
                return ;
            })}
            
            
        )
    }
}

//------------------------------------------------------
import React, { Component } from 'react';
import './Tour.scss';

export default class Tour extends Component {
    state={
        showinfo:false,
        name:""
    }
    handleInfo=()=>{
        this.setState({
            showinfo:!this.state.showinfo,
            name:"kumar"
        })
    }
    render() {
        const {id,city,name,info,img}=this.props.tour
        return (
            

            

            
               

               
                
                    
                
               
               

               

               
{name}
               
{city}
               
info{""}
               
                
               
               {this.state.showinfo && 
{info}{this.state.name}
}
               
               
               
            
            
        )
    }
}

Example 4: defining props in react

function Welcome(props) {
  return 
Hello, {props.name}
;
}

const element = ;
ReactDOM.render(
  element,
  document.getElementById('root')
);

Example 5: react props

Props is a way to transform data from one component to another.

 //IN component
  {this.props.numbre} // in html is 1

Example 6: class to functional component react

// convert a class component to a functional component
class MyComponent extends React.Component {
	state: { 
      name: 'Bob' 
    }
	render() {
      return (
        
Hello, my name is {this.state.name}
      );
    }
}

const MyComponent = () => {
  const [name, setName] = React.useState('Bob');
  return (
Hello, my name is {name}
);
}