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A comment on What Elm and Haskell are teaching mainstream JS [video]. Parent comment

Re:What Elm and Haskell are teaching mainstream JS [video] by kyllo on Tuesday December 01, 2015 @11:31AM (#10656628)
Exactly. Vanilla JS (and JQuery and friends) have the semantics of mutating a tree (the DOM) in-place. A key differentiator of these functional libraries is the immutable data structure semantics.
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