As a very green JS programmer, I found this post informative and fun. I think this sentence has an editing mistake in it: It’s simply a property whose nam

As a very green JS programmer, I found this post informative and fun. I think this sentence has an editing mistake in it: It’s simply a property whose name is not a symbol rather than a string. I think that the "not" shouldn't be there, the double negation makes the sentence fail to parse for me at least (ObCaveat: not a native speaker).