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Re:Show HN: Under the hood ReactJS by daliwali on Tuesday July 04, 2017 @04:16AM (#14694358)
I think it's a UML activity diagram, which is in fact a flow chart.
Re:Show HN: Under the hood ReactJS by kaoD on Tuesday July 04, 2017 @06:39AM (#14694939)
I was taught UML activity diagrams were high-level representations, while this is a (summarized) flow chart of code paths (which makes it quite big in comparison to what would be its high-level UML counterpart).

UML is supposed to be an architectural diagramming standard. What's the point of diagramming in UML the actual code paths?

E.g.: you'd never have object shapes or function calls in an UML activity diagram.

This is just an ad-hoc flow chart AFAICT.