Effect TypeScript Library: Beginner / Intermediate Workshop (Effect Days 2024)

[@ikbo]

It is pretty damn impressive this kid is still in high school. 👏👑

[@andrueanderson8637]

And So...uh....right?...and so...kinda...kinda...uh...and so...uhh...

[@raoulkent]

@@andrueanderson8637 Buddy, the guy might not have presentation skills down to a T. That does not remotely detract from the fact that he has FAR deeper and broader knowledge than most his age, even among those who meddle with programming.

[@Ivcota]

@@andrueanderson8637 tell me you're insecure without telling me you're insecure

[@mostlymark]

@@andrueanderson8637 Let us know next time you're giving a 4 hour live presentation covering multiple modules from a complex software library. We'll see how you do.

[@vanovich4944]

This kid is in high school and already has a solid knowledge of multiple programming languages, OS, and concurrency. You are a different breed, Ethan

[@NikKita-t8b]

I watch this video fourth time... and it worth it! Amazing and genius! So cool! Thanks a lot!

[@dzigizord6567]

Did I hear that you are high schooler?! Dude, you are killing it. In high school I was writing dumb Pascal/Delphi programs and thought I was cool. I'm double your age and learning a lot from you. The way you present is also so well structured and good.

[@coder_one]

The Effect-TS documentation is overwhelming. Evidently this framework lacks materials like this one. I hope there will be more and more of them. Especially with examples of using Effect with React, Node, Express, Hono, Solid.js, etc.

[@ricoowenene9897]

I am 1 hour in and I already have so much more clarity than I did reading the docs. Thanks man!

[@jameswainwright5217]

This presentation is killer!!! 🔥

[@SellvaXYZ]

I've moved from TypeScript to Scala and now back to TypeScript and I would love to work with Effect

[@andrejnaumovski8622]

I used to work with both Typescript and Scala for around 2 years at my previous position and absolutely loved the functional nature of Scala. Hearing about Effect a few days ago, it's one of the rare new tech/libraries that actually got me excited to try out and tinker with.

[@PaulPhilp-pe5oe]

Great presentation, Ethan. This really solidified my knowledge of Effect.

[@kashnigahbaruda]

Great stuff. I would like to see more videos of converting apps to use Effect

[@calvinfernandes1054]

Wow this is great content, thank you so much for posting this for free ❤

[@kaioneal6160]

Ethan will do amazing things in his life Don’t be hard on him or Effect it is still early

[@gnorts_mr_alien]

Great talk. Typically developers go into the deep end with these abstractions after a lifetime of dealing with imperative code and fighting against its shortcomings. Now I get to wonder what you lived in your short life so far to reach to these and master them! You are also very eloquent and have a knack for teaching. Too bad we didn't get to writing application code...

[@nurbekizbassar3326]

What an awesome presentation. The kid rocks

[@javierabrego836]

I've been struggling with the documentation of effect for a couple of days and after watching this video I was rolling. Thanks @ethanniser

[@minyoungna6642]

You sir are a prodigy

[@pajaseviwow]

This was amazing. I want more.

[@wangyujing7651]

Thank you Ethan,just learning Effect, great talk.

[@inujung8224]

i would've shit my pants if i had seen this when i was in high school. this kid is awesome.

[@Danielo515]

@ethannisser you are a hero of effect

[@jethrinfoxx]

Great talk Ethan!! 🎉

[@adamjosefus]

Super useful. Thank you!

[@WillMruzek]

@ethanniser I would totally buy a course that went through the whole workshop. Given you weren't able to cover everything, I think many would be interested.

[@runescapes]

great talk Ethan

[@namnhan6052]

really good and helpful! I hope effect team will have many workshop in the future

[@ventsislavbuhlev3620]

In the beginning, when I heard the lector was in high school, I admit I was skeptical. But damn, that was one pretty good lecture! Congrats, and thanks!

[@GreatBritton]

2:42:27 for the Scope.extend portion, couldn’t you just wrap each scoped effect in Effect.scoped? Why would that be different than the example? Or is this just showing that it splits scope into separate requirements that would have to be closed with scope.close for each some time in the program?

[@michaelarnaldi6680]

With Scope.extend you provide an existing Scope to an Effect, you don't automatically close such Scope. With Effect.scoped a new Scope is created, provided to the Effect and then closed once the Effect finishes.

[@felixranesberger3846]

Awesome video!

[@somenoe-com]

Great presentation, i want to learn more, but is that LIGHT theme!?

[@NecaVideo]

What I noticed now is that if you provide Symbol(tag) you can avoid conflicts if the tag is same, TS complains if you use Symbol instead string, but if you ignore TS error and cast it to string it actually works fine

[@uchennaofoma4624]

amazing talk

[@joshuaokunola6261]

Thank you

[@michaelcostello6085]

Confused at 16:58 why the Requirement type is 'never' - aren't we passing declaring Database as the required type?

[@AMar4enko]

In that example first line is what Effect generic type signature looks like - 3 type args A, E, R where E and R are never by default (so that you don't have to explicitly provide args E and R as never if you only care about success type A) The second line tho is a concrete instance of Effect generic type you may find in your real world app - operation that returns User, may fail with UserNotFound error and depends on Database

[@najlepszyinformatyk1661]

I think the missing thing with effect is no jsdoc.

[@solinovo3219]

Anyone know where can I even start to searching for Effect jobs? I really want to get good at it :(

[@effect-ts]

We have a jobs channel in our community, feel free to join us here: discord.gg/effect-ts

[@Lambdaphile]

Yay!

[@najlepszyinformatyk1661]

Nice workshop I'm taking my first steps with effects in ts, However I feel a little bit awkward because it looks like learning whole new language

[@AvanaVana]

“Real world examples” - a high schooler I kid. Well, only partially. And lovingly.

[@michaelarnaldi9112]

A high-schooler who is one of the most knowledgeable programmers out there and that during summer break interns at YC-backed companies redefining their whole stack. Ageism is a form of discrimination!

[@dimitro.cardellini]

17:30 -- it is exactly a problem of Effect. You need all requirements, but declare that you need any of them ...

[@michaelarnaldi9112]

To declare that you need "any of them" means declaring a service which is a union in its shape. Totally doable.

[@dimitro.cardellini]

​@@michaelarnaldi9112 Actually I don't need to declare "any of". The problem of Effect is that, the "updateEmail" function depends on ALL services. But it's result defition declares that it depends on any of the services. It is semantically incorrect.

[@michaelarnaldi9112]

@@dimitro.cardellini it's not because it is a phantom type encoded covariantly.

[@dimitro.cardellini]

@michaelarnaldi9112 why is it phantom? It is a Reader type, and it is explicite. It just confuses )

[@michaelarnaldi9112]

@@dimitro.cardellini it's not a reader type it's an index type, both `Console | Http` and `Console & Http` are not existent (phantom) they are basically representing just an index (the required list of services) and in TS intersections can lead to reduction to `never` so it's not smart to encode phantom types contravariantly mixing them with & which leaves us with a covariant phantom that mixes with |, not too unlike Map where Key is covariant.

[@Danielo515]

The underscore function is no longer necessary. Sorry man, every video you do about effect gets out of date so quick...

[@b_two]

Damn they make em young nowadays. High school?!

[@jameswainwright5217]

58:24 - describes the _ (underscore) function that is used inside Effect.gen(function* (_) kzbin.info/www/bejne/gquVe2SEd9N7gZY

[@digitalspecter]

I was listening to this and misheard his name as "euthanizer" (sorry!) Luckily, it wasn't quite that brutal, just a super cool talk!

[@rafaelhernand3z]

Looks like fp-ts

[@PeterSahanaya]

yea because fp ts maintainer is merging with effect team

[@임채현-f5b]

light mode?

[@joshuaokunola6261]

I love it ❤

[@kilo.ironblossom]

Yep! Cause dark mode is mostly hype for the past 10 years and still is

[@AndreasScheucher]

Really great presentation! But please, the next time break down the chapters into own videos! It's impossible to scrub to something I want to rewatch on mobile. Also, why are the chapter marking on the recap, not at the beginning of the chapter? Take this as a great example, how to make long content bearable: kzbin.info/www/bejne/pJzTgYKMiq2HZ80si=Gak-NGX1SSH2iHuj But still, thanks for sharing!

[@AndreasScheucher]

And also pleeeeeaaaase switch off the git blame feature. I am not interested in reading who wrote it, in the middle of trying to understand what's there in the editor.