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My personal JSON Pet hate is: ``` x = [ "Foo", "Foo2", ] ``` Is not valid, but the following is: ``` x = [ "Foo", "Foo2" ] ``` Makes dealing with packer configs feel like punching yourself in the face.

I still prefer it over YAMLs awkward initial learning curve.

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At first I found it really annoying but then the more I thought about it the more I came to value the "," semantics as proper validation for a "forgot to put the last element in the list" error which would otherwise be silently hidden via the parser.

So your comment is vaild. Having strict and not-strict validation would be a nice compromise though (:

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