KWBlog

Posts Tagged F#,-tests

REPL vs. Tests

I fell in love with functional programming when I learned F#. We program in C# at work, but I use F# any chance I get on little side utilities and things. In F# the REPL is a pretty big deal. F#'s REPL is called fsi (F# Interactive). REPL stands for Read, Evaluate, Print Loop. It's just an interactive shell where you type in F#. When Rosyln came out C# got C# Interactive too, and it's built into VS but I never think to use it for some reason. But I do reach for fsi a lot when I'm writing F#, and from what I can gather that seems pretty typical in the F# community and the functional programming world at large too.

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