// Original:
import("module/id").then(...);

// Node.js (synchronous require; easy):
Promise.resolve().then(_ => require("module/id")).then(...);

// AMD (async require; non-standard):
new Promise(resolve => require("module/id", resolve)).then(...);

// Webpack 2 (require.ensure is Webpack-specific):
new Promise(resolve => {
  require.ensure(["module/id"], require => {
    resolve(require("module/id"));
  });
}).then(...);

// Meteor 1.5:
module.dynamicImport("module/id").then(…);