I agree this may be subjective, but aren't we crossing the line when the 'how' becomes more important than the 'what' (i.e. the purpose of the code?)

Following this principle code example 2 (i.e. Javascript after deduplication) would be the sweet spot. It fulfills the requirements without in the most obvious way, at a good level of abstraction (the requirements did not make any of the three pictures specific -- defining a separate function for each actually goes beyond the requirements, while obscuring the higher-level goal).

All of the subsequent examples focus on using the features of the platform rather than clearly showing the purpose of the code, i.e. unnecessarily obfuscate it.