Yes, and as a corollary to my comment above I do have my own apps that I write that are entirely in ES2015 (aka ES6) and haven&#x27;t found any features that I really want to use that aren&#x27;t implemented by the big browsers (Chrome, Firefox, Safari, Edge). No transpiling needed; it seems like transpiling is only <i>really</i> needed if you want to support legacy versions of Internet Explorer.<p>Only Internet Explorer lags behind, but I&#x27;m not opposed to putting a warning when somebody visits with Internet Explorer when its my own little app.