babel-node es6 “Modules aren't supported in the REPL”

Question

babel-preset-es2015 is installed, and is OK with es6 feature just like below let a = 2;.
But can not work with es6 modules feature import

Answer 1

The error message is exactly what it says. You cannot use ES6 module syntax in the REPL, it is unsupported. You can create a small adapter that imports as ES6 and exports as CommonJS:

# es6-to-common.js
import MyThing from './somewhere';
module.exports = MyThing;

Now inside your usual babel-node prompt:

> MyThing = require('./es6-to-common')