Testing JavaScript code snippet – new editor

/**
 *  File: App.js
 *  "React State Example-1: Update state using 2 select elements."
 *  by Joe Dorocak (JoeCodeswell.com) 
 *  Demonstrates changing state with 2 select elements 
 * 
 *  Source Code Link: https://joecodeswell.wordpress.com/2018/09/25/react-state-example-1-update-state-using-2-select-elements/
 * 
 * MIT License
 * 
 * Copyright (c) [2018] [Joseph P. Dorocak]
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 * 
 *  https://en.forums.wordpress.com/topic/posting-javascript-markdown-does-not-show/
 * 
 *  
 */

import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';

let programmerList =  ["Admiral Grace Hopper","Ada Lovelace","Donald Knuth","James Gosling","Guido van Rossum","Linus Torvalds"];

class App extends Component {
  constructor() {
    super();
    this.state = {
      counter: 0,
      programmer_list: programmerList,
      fmSelFrom: programmerList[0],
      fmSelTo:programmerList[0]
    };
  }
  handleFromChange = (event) => {
    this.setState({ 
      fmSelFrom: event.target.value     
    });
  }
  handleToChange = (event) => {
    this.setState({ 
      fmSelTo: event.target.value    
    });
  }
  render() {
    // inside class App -> render(){ before return(
    return (

      /* begin out of the box jsx */
      <div>
        <header>
          <img src="{logo}" alt="logo" />
          <h1>Welcome to React</h1>
        </header>
        <p>
          To get started, edit <code>src/App.js</code> and save to reload.
        </p>
        {/* end out of the box jsx */}
        {/* begin non out of the box jsx */}
        <div id="show-programmer-list">
          <p>Programmer List</p>
            {this.state.programmer_list.map(  (itm,ix) =&gt; <p>ix:{ix}-&gt;itm:{itm}</p> )   }          
        </div>

        <div id="select-programmer-from-to">
        
            Pick your FROM Programmer:        
            
              {this.state.programmer_list.map(  (itm,ix) =&gt; {itm} )   }  
            
        
        
          Pick your TO Programmer:         
          
            {this.state.programmer_list.map(  (itm,ix) =&gt; {itm} )   }
          
        

        <p>this.state.fmSelFrom: {this.state.fmSelFrom}</p>
        <p>this.state.fmSelTo: {this.state.fmSelTo}</p>

        </div>
        {/* end non out of the box jsx */}
     
      </div> 
      /* end of <div> */

      // inside class App -&gt; render(){ -&gt;return( -&gt; after <div></div>

    ); // end render -&gt; return
  } // end render () code
}

export default App;