Participation in developing the existential operator proposal Babel plugin

[hzoo]

Feel free to close the issue (since this is about the existential proposal), but I wanted to check in/ask if FB would be willing to help with the development of the actual babel plugin given it's Stage 1 now (babel/babylon#328).

Aside: happy to see the use of preset-env and lerna 😄

[yungsters]

I've shared this call for help with engineers internally at Facebook. Thanks for raising this opportunity! (I actually didn't realize that it was already Stage 1.)

My first time using preset-env and lerna. I hope I did it right. 😄

[hzoo]

Yep! We're working with @gisenberg (Gabriel Isenberg) who is the new champion for this. We also have a slack room for it https://babeljs.slack.com/messages/proposal-opt-chaining

[hzoo]

Babylon PR is at babel/babylon#545

[hzoo]

FYI babel/proposals#18 - proposal is Stage 1 and in one of the 7.x alpha releases