JS doesn't compile so all the runtime engines (mainly browsers) need to adopt the new features as well. This takes time. These new features are part of the offi

JS doesn't compile so all the runtime engines (mainly browsers) need to adopt the new features as well. This takes time. These new features are part of the official ES2019 standard, and Babel makes it possible to use these new language features and transpile it to a language that all the browsers can use. What's not to love? This is actually a great (if not amazing) thing.