How do I export an ES6 class and construct an instance of it in another module?

Using Node.js version 7.7.2, I'd like to define and export an ES6 class from a module like this:

// Foo.js
class Foo() {
    construct() {
        this.foo = 'bar';
    }
}

And then import the class into another module and construct an instance of said class like this:

// Bar.js
require('./foo');
var foo = new Foo();
var fooBar = foo.bar;

However, this syntax does not work. Is what I am trying to do possible, and if so, what is the correct syntax to achieve this?

Thanks.

via Allen More