I think if you are reviewing the code and stopping at this shorthand for a few seconds to figure out what it is doing then it is already bad. Because if you'll debug such a shorthand fest in the future you will curse that "smart" developer...
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The next person who has to look at it. Shorter is only better when it makes the code simpler and better to understand.
+1, I'm not sure the author has the same definition of cleaner than me.
I think if you are reviewing the code and stopping at this shorthand for a few seconds to figure out what it is doing then it is already bad. Because if you'll debug such a shorthand fest in the future you will curse that "smart" developer...