There are several additional choices to make: how to configure and invoke the Babel compiler that turns JSX into plain JavaScript; whether and how to bundle your JavaScript with a tool such as ...

Higgs, an experimental JavaScript engine written in D, uses novel approaches to speed up JavaScript -- and could inspire similar projects An experimental new JavaScript compiler could provide ...

The new JavaScript compiler made its debut in the nightly releases of Firefox 18 in September, but the project had already been underway for a good year at that point.

Google says its new JavaScript compiler saves 17 years of Chrome users' CPU time each day. It should also benefit all Chromium browsers that use it.