What I hate is that you don't even write JavaScript anymore.
You write fantasy future JavaScript. Sure, it will be available in ECMAScript 23, scheduled to drop in real browsers in 2092. But for now, here's a convoluted mess of polyfills, Babel, and WebPack, that we HOPE papers over the real behaviour of browsers, and suddenly your test-and-debug cycle has introduced a flow-shattering 15-second build cycle each time you change a file.
You write fantasy future JavaScript. Sure, it will be available in ECMAScript 23, scheduled to drop in real browsers in 2092. But for now, here's a convoluted mess of polyfills, Babel, and WebPack, that we HOPE papers over the real behaviour of browsers, and suddenly your test-and-debug cycle has introduced a flow-shattering 15-second build cycle each time you change a file.