Potential module import syntax in ES6

moduleImports.js

module _ from "underscore";
import _ from "underscore";
import module _ from "underscore";
import {each, map, find} from "underscore";
import "underscore";
import default _ from "underscore";
const _ = System.import("underscore");
import "underscore" as _;
import {_} from "underscore";
import {each as forEach} from "underscore";
import _, {each, map, find as locate} from "underscore";

well now, these are just all of the different suggestions over time, not all of these are in the spec

None of:

import _ from 'underscore';
import { _ } from 'underscore';

Is allowing me to user _ in the command console.

import $ from 'jquery';

Works as expected.