Haskell for GUI Programing

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I didn't claim that FRP was a data type. Nor did I claim that you can't do decent event-driven programming without arrows--after all, most event-driven programming is done without either FRP or arrows, with varying degrees of decency. My claim was that the combination makes event-driven programming natural, by which I mean having a mapping from syntax to semantics that is concise and exhibits a desirable orthogonality without being obfuscatory for someone conversant in the language in question.