I don't know about any course but I think your best bet would be looking for courses that teach a functional programming language like Elm, F#, Purescript or maybe ReasonML. Find a language that only supports functional programming patterns and build something with that.
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I don't know about any course but I think your best bet would be looking for courses that teach a functional programming language like
Elm,F#,Purescriptor maybeReasonML. Find a language that only supports functional programming patterns and build something with that.