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Re:RFC: Adopt a modern JavaScript framework for use with Med... by vorpalhex on Thursday March 19, 2020 @09:48AM (#22627440)
Page Previews, specifically Hovercards can be implemented in a very simple way with plain JS [^1] and is clearly an enhancement - everything works just fine if hovercards don't load.

But most features on Wikipedia aren't like that, and would be really hurt if you had to a JS bundle or otherwise deal with the usual bloated webapp nonsense. Wikipedia primarily needs to load quickly and be semantic with preferably simple infrastructure to help their budget.

[^1]: See Gwern.net for an example of an easy pure JS hovercard - https://www.gwern.net/DNB-FAQ

Re:RFC: Adopt a modern JavaScript framework for use with Med... by majewsky on Thursday March 19, 2020 @10:45AM (#22627947)
Each such feature individually can be implemented in a very simple way with vanilla JS. All such features taken together create a horrible unmaintainable mess. Speaking from experience.