How to create a static variable in ES6?

Question

JavaScript

How to set a variable in a class.
static is not suggested.

SubList.style = {
        overflow: 'hidden'
    };
//Не работает 

    SubList.prototype.style = {
        overflow: 'hidden'
    };

Can be defined in the constructor?

Answer 1

No, ES6 doesn't have that. But in ES7 it is planned , babel supports it.

Answer 2

Can be defined in the constructor?

you wanted static. Otherwise:

class SubList {
    get style() {
        return {
              overflow: 'hidden'
        };
    }
}

it is possible to stir up a statics also, but then it will be necessary to address also through SubList.
updated:

var someObj = {
    overflow: 'hidden'
};

export default class FooBar {
    get someObj() {
         return someObj;
    }
}