Add method to React component

Now we will see how to add method to React component. If you are not familiar with creating React component you can refer this tutorial
I have the following code inside the index.js file

import React from 'react'
import {render} from 'react-dom'
import {Product} from './product.js'

render(

    ,
    document.getElementById('root')

)

Then I will create method in my component file product.js

import React from 'react'
var createReactClass = require('create-react-class');

export const Product = createReactClass({

	
    calculateDiscount(discount){
       return discount/100*this.props.unit_price*this.props.qty
    },


	render(){
		return (

				

					

						
 Product Name :{this.props.name} 
						
 Unit Price : {this.props.unit_price} 
						
 Qty :{this.props.qty} 
					
					
 Total Discount {this.calculateDiscount(this.props.discount)} 
				
			)
	}
})

You can see the calculateDiscount() method in code and you can call the method this.calculateDiscount()