Hi I just want to receive ajax request, but the problem is that jquery is not defined in React. React version is 14.0

Error message

 Uncaught ReferenceError: $ is not defined

I have two files :

index.js

import React from 'react'; 

import { render } from 'react-dom';

import App from './containers/App';  



const root = document.getElementById('root');  



render( 

  <App source='https://api.github.com/users/octocat/gists' />, 

  root

);

app.js

import React, { Component } from 'react';



export default class App extends Component {



    componentDidMount() {

        const { source } = this.props;



        console.log($); // throws error

    }



    render() {

        return (

            <h1>Hey there.</h1>

        );

    }

}