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Javis.jl – Julia Animations and Visualizations

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Why does Javis use `act!(object, action)` rather than making actions callable structs so you could do `action(object)` ?

Julia is not object-oriented. If you want to dispatch on the type of action, you include it in the method signature.

Actually, callable structs are a common pattern in Julia, and are not in opposition to multiple dispatch.

You are probably thinking of dot-method syntax, like this

  object.action()

Might make it easier to dispatch on both the object and the action? Just a wild guess.

Right, can't to abstract callable overloads in older versions of julia