GitHub user felizbear reopened a pull request:
https://github.com/apache/zeppelin/pull/1639
[ZEPPELIN-1667] add support for es6
### What is this PR for?
This PR adds support for the current ECMAScript standard
[es6](http://www.ecma-international.org/ecma-262/6.0/) via
[babel](http://babeljs.io/)
([babel-grunt](https://github.com/babel/grunt-babel) plugin)
### What type of PR is it?
Improvement
### Todos
* [x] - Add babel presets for es6 (aka es2015) and object spread operator
* [x] - Add eslint rules to lint es6 correctly
* [x] - Add `babel` task to grunt and modify `serve`, `test` and `build`
tasks
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-1667
### How should this be tested?
1. Run `grunt serve` and make sure it works properly (including reload on
change)
2. Run `grunt test` and make sure tests pass
3. Run `grunt build` and make sure it builds and runs correctly
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/felizbear/zeppelin frontend-es2015
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1639.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1639
----
commit 971f05f9eaeccdaeec351eacd7aa2b9c6d25792a
Author: felizbear <i...@nflabs.com>
Date: 2016-11-15T08:35:49Z
add dependencies on grunt-babel and babel presets
commit 3d9531b2789769e65fba5de92dda5c60c37a77db
Author: felizbear <i...@nflabs.com>
Date: 2016-11-15T08:29:23Z
update eslintrc to enable linting es6
commit 192cf00f9ae613bb77777a3985eef234e7d23f10
Author: felizbear <i...@nflabs.com>
Date: 2016-11-15T02:17:41Z
add babel task to gruntfile
commit eb0a72d2acc8ad37a760af5dcda49bcc24e62667
Author: felizbear <i...@nflabs.com>
Date: 2016-11-18T01:12:12Z
increase heap size in travis CI
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