(Source: npm, includes 5-day moving point average)
And we’re just getting started...
Our top priority is eliminating any barriers to ES6+ adoption, and while 6to5 may be the most feature-ready ES6 transpiler out there right now, there are other great projects attempting to do the same. Traceur Compiler is the most common alternative to our compiler, but it’s also the most different since it relies heavily on a runtime. Other alternatives with similar approach to 6to5 include: es6-transpiler, es6now, jstransform, and esnext.
esnext is the closest 6to5 in it’s aim. With a focus on creating a smarter transpiler that can create higher quality ES5-compatible output, both projects are easy to get started with, and both care deeply about creating the best tool for developers.
A few weeks back, Stefan Penner reached out to us hoping that, because we share the same mission, we might be able to unite our efforts. Excited by the idea, we quickly scheduled a meeting to discuss what that might mean.
The meeting went well:
We’ve decided that because of our shared goals and philosophy it makes sense to merge the two projects in an effort to build a better transpiler.
So what will this mean for both projects?
The esnext team will start work on 6to5 bringing their skillset and experience to make it faster and more spec-compliant. On our end, we will be migrating people from esnext to 6to5—we’ve already ported all of the esnext tests to 6to5 to ensure nothing will break.
Ember CLI users (currently using esnext) can expect 6to5 to become installed by default replacing esnext.
You can expect continued work on 6to5; we’re always finding ways to grow and refine. We hope others will join our efforts so our energy can be spent improving rather the competing.
— The 6to5 team