Open Stack

TL/DR: Should we support EcmaScript 6?

Discussions I've had on the topic:

Vancouver:
- Browser support is not yet broad enough, so no- we shouldn't support ES6.
- TypeScript is too closely tied to Corporations (tm), not really an open
standard. Do not support TypeScript.

Austin:
- Fuel is using ES6, is now an official project (?).
- We have non-browser projects that could use it, assuming that we have a
recent version of Node.js that we can test on.
- We now have Node4 LTS on our infra build nodes, which support _most_ of
EcmaScript 6 things.
- EcmaScript continues to be moving target (And will likely always be a
moving target).
- Xenial contains Node 4 LTS. Ubuntu does _not_ have an upgrade exception
for node (akin to Firefox).
- Node 6 LTS was released during the summit.

Body of work required:
- Discuss and enable linting rules for ES6 in eslint-config-openstack.
- Smoke-test fuel's unit and functional testing for ES6 components.

Personal Assessment:

Frankly, we already have ES6 in our infra, so that train has left the
building. What we need to do is make sure it has the same level of support
as other languages, which, I believe, isn't going to be too difficult. I
also have some commitments of mutual assistance from Vitaly (Fuel) to keep
things sane and keep communication open. As for the upcoming Node4 vs.
Node6 question, I recommend that we _not_ upgrade to Node 6 LTS in the
Newton cycle, however strongly consider it for the Ocata cycle.

Am I missing anything? Does anyone have opinions?

Michael
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