ES2015 "import" not working in node v6.0.0 with with --harmony_modules option
<p>I am using node v6.0.0 and wanted to use ES2016 (ES6). However I realized that the "import" syntax is not working. Isn't "import" fundamental to for writing modular code in ES2015? I tried running node with <code>--harmony_modules</code> option as well but still got the same error about "import". Here's the code.</p>

<p>Working code without "import":</p>

<pre><code>'use strict';
let sum = 0;
class Number {

  addNumber(num1, num2) {
    return num1 + num2;
  }
}
let numberObj = new Number();
sum = numberObj.addNumber(1,2);
console.log("sum of two number 1 and 2 "+ sum);
</code></pre>

<p>Notworking code with "import":</p>

<p>server.js</p>

<pre><code>'use strict';
import Number from "./Number";

let sum = 0;


let numberObj = new Number();

sum = numberObj.addNumber(1,2);
console.log("sum of two number 1 and 2 "+ sum);
</code></pre>

<p>Number.js</p>

<pre><code>'use strict';
export default class Number {

  addNumber(num1, num2) {
    return num1 + num2;
  }
}
</code></pre>

<p>I also checked <a href="http://node.green/">http://node.green/</a> to see the supported es6 however not able to understand why it doesn't work with --harmony_modules option. Please help.</p>