It seems that in ReSharper or IntelliJ Idea you can expand selection from expression to method to surrounding block etc. This should be possible to do via ctrl-W, but that does not seem to work in WebStorm on my Mac. Is there a way to do it or is such functionality disabled in WebStorm for some reason?
According to http://www.jetbrains.com/webstorm/documentation/WebStorm_ReferenceCard_80.pdf, try using "Option/Alt + Arrow key Up" for "Select successively increasing code blocks" action