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Function purity is a mathematical term with a clear definition and doesn’t deserve the double quotes which imply some vacuous definition or uncertainty.

Assuming you are referring to “pure”, in the context of functional programming and isolation of side effects.



Was what I was referring to actually ambiguous?


What is ambiguous are the details about how you think that JavaScript and functional + immutable-datastructure programming is detrimental.


Oh, that's totally different from what you posted about before. OK.

Allow me to quote me, to clarify this part, then.

"when [they aren't] a great fit for the host language"


What remains ambiguous is how it is not a great fit, in that specific case.




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