Responsible JavaScript

Code written using experimental features will always require transpiling, which represents an unnecessary performance cost. Never use or transform experimental features in production code. Like, ever. It carries zero user-facing benefits. This is an easy thing to avoid for Babel in particular: step lightly and do your research before using plugins or presets to transform production code if their names contain the word “stage” or “proposal” (http://bkaprt.com/rjs39/05-14).