For me, one of the biggest revolutions was Babel. It made it possible for Javascript to change. Instead of being forced to write code that would run on all the

For me, one of the biggest revolutions was Babel. It made it possible for Javascript to change. Instead of being forced to write code that would run on all the supported browsers, with Babel we could actually use new features, and let it deal with translating them to stone age equivalents. That was huge.