See item #5 at https://github.com/softlayer/ember-style-guide/blob/master/javascript.md#commas Similar question is posed in https://github.com/softlayer/sl-ember-behavior/issues/100
See item #5 at https://github.com/softlayer/ember-style-guide/blob/master/javascript.md#commas
Similar question is posed in softlayer/sl-ember-behavior#100