Analysis support of ECMAScript 6 new constructs, see ES6 features (by Luke Hoban)
To display code coverage data:
Since the plugin version 2.0, you can force coverage value to be set to "0" without providing any report. You just need to set the following property to "true":
See the related Jira ticket for more detail: SONARJS-239.
See Metrics documentation page.
New coding rules can be added using XPath. See the related documentation.