Bable transpiles ES6 modules to CommonJS modules

gistfile1.txt

C02Q10QCG8WM:~ gpatel$ ./node_modules/.bin/babel -d ~/tmp/es5-compiled --presets es2015  ~/tmp/lib.js ~/tmp/main.js 
/Users/gpatel/tmp/lib.js -> /Users/gpatel/tmp/es5-compiled/Users/gpatel/tmp/lib.js
/Users/gpatel/tmp/main.js -> /Users/gpatel/tmp/es5-compiled/Users/gpatel/tmp/main.js
C02Q10QCG8WM:~ gpatel$ cat ~/tmp/lib.js ~/tmp/main.js ~/tmp/es5-compiled/Users/gpatel/tmp/*
export const sqrt = Math.sqrt;
export function square(x) {
  return x * x;
}
export function diag(x, y) {
  return sqrt(square(x) + square(y));
}
import { square, diag } from 'lib';
    console.log(square(11)); // 121
    console.log(diag(4, 3)); // 5
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.square = square;
exports.diag = diag;
var sqrt = exports.sqrt = Math.sqrt;
function square(x) {
  return x * x;
}
function diag(x, y) {
  return sqrt(square(x) + square(y));
}'use strict';

var _lib = require('lib');

console.log((0, _lib.square)(11)); // 121
console.log((0, _lib.diag)(4, 3)); // 5C02Q10QCG8WM:~ gpatel$