Where we purposefully parse probably purple people. — me> Now what? wat> Yes 😃 me> Not you. I mean, now we know a Parser is a Functor, an Applicative and a Monad… what do we do with one? 😅 wat> We parse, I guess? me> But how? 😅 😅 wat> Here, have a look at this: run …

Where we put it all together to discover a new lib. — me> So… what’s all this good for anyways? 😩 wat> What is “all this” you speak of? 🤨 me> Functors, Monads, Applicatives… what’s the point? wat> Ooooh, someone is moody today. 😅 me> I mean, I know Functors are things you can map on, Monads things you can andThen on…

Where we learn that andMap is not just for Decoders — wat> So, that was… long. And boring. Veeery veeery boring. me> 😅 wat> You left me to rot in a box! Again! 😡 me> But… 👉👈 I was busy with work and getting used to my ergodox layout… and tuning the layout… and getting used to the new layout, and… …

Sometimes you can’t find a mapN with a high enough N — me> Aaaaargh, not again! wat> I hate the sound of frustration in the morning. What’s wrong? me> What’s wrong? I’ll tell you what’s wrong! That is what’s wrong: type alias Person = { firstName: String , lastName: String , age: Int…

In which we map, we concat, andThen we concatMap — me> So… we’ve seen a lot of these monads you’ve been telling me about… wat> Looks like someone is ready to generalize 😉 me> Frankly I’m not sure… 😅 but let’s go ahead and see where it leads us, my rubbery friend. wat> Let’s. And to begin with, can you…

A Decoder is like a box of future data. You never know what you’re gonna get. — me> Back from vacations 😃 where’s my favorite flat-beaked know-it-all? wat> Just where you left it. My vacations were nice by the way. It’s calm here without the keyboard clacking. me> As if I know you use my rig when I’m not here to watch those kinky videos on Monads…

Where we extract that juicy functionally pure data out of messy JSON strings — me> Wat, I have a problem… wat> Do you ever? 😏 What’s the matter? me> I have this JSON file with data that I want to read… wat> This sounds like a job for the Json.Decode library!🦸And more specifically Json.Decode.decodeString: decodeString : Decoder a -> String -> Result Error a …

Where we andThen a Generator inside a Generator — me> So, Random has an andThen function… 😄 wat> That it does 😉 would you like to know more? me> Sure. Last time we saw andThen it was for Maybe and Result, it allowed us to access what was kept inside a "successful" value of a Maybe or a Result…

Where we make random stuff with a Generator, and work in the future — me> So… what if I wanted to get a random value… wat> Just input the time coordinates and accelerate to 88 miles per hour… me> I want to get a random *value* not a random *answer* 😠 wat> It kinda wasn’t. Thing is, Elm can’t give you a random value. …