Hi there, amazing video straight to the point. As someone just starting out with Scala this channel is a goldmine! However I also wanna leave some feedback (unrelated to Scala), or rather advice to watchers of this video. 7+ years ago using a Before method probably seemed like a nice idea to reduce repition, but it also makes harder to understand what's going on inside of a test case. In this particular case it's not too bad, but people tend to use such "helpers" and before long there's tons of shared code in the Before method that prepares all kinds of state and it makes tests a little more coupled and opaque. The modern approach is to create a function that creates your object, so you'd have something like this repeated in every function: val stack = getDefaultArrayStack() So even if your initializationcode becomes more complex you still only have to change it in one place, but all tests are a bit more transparent about their initial state. There is still indirection/abstraction, but finding the places that actually runs the code is obvious (just follow the function call), rather than having to reason "oh this one variable here which comes out of nowhere might have been manipulated in some lifetime method of the test itself, i guess". Also if one test needs to prepare a little more or a little less than the others, no problem, just don't call the respective functions. Due to similar reasoning Microsoft (edit: not sure if they are the maintainers or someone else) actually removed their Setup and Teardown methods completely from newer XUnit versions (C# equivalent of JUnit)

thank you very helpful

Thank you!

After working for so many years , just in this video I realised why we shouldn't use float/double for currency, thank you 😊

2:34 This copy & paste only worked because the constructor argument *_balance* is of the type *Int* (a class), so the private field *balance* points to the same reference in memory and later updating the argument *_balance* in a closure still updates the field. If it was the primitive value *int* it would be a bug, so it would be best to have replaced the copy & paste values with *balance* instead. Nice example, and great videos! ❤

I am getting the following error in my scala console : scala> printf("hello") <console>:23: error: type mismatch; found : String("hello") required: org.apache.spark.sql.Column printf("hello")

?v=saWlRI10LiQ on yt , is bigger blood bath to be unravel...., certainly would appreciate your thoughts though.... thank you

It is nice to see that you are still using scala. I first learn scala, many years ago, by watching your scala series. However, after 5 or 6 years working with it, I found this language can be replaced by Rust. We are now shifting our apps in RUST due to its (rust) more stability and industry compatibility, which scala lost a few years ago. RIP scala.

Thank you......however needs an example project though

You’re back?! ❤

Thank you....welcome back to YT, certainly looking forward to your content always...

Why not just use lock?

Thank you sir, you helped me understand kdTree few months back. I integrated the kdTree search in a pathfinder project for a game (aka find the nearest node to route from). The log n search time is awesome. :)

Finally, Mark! New videos from you! Are these gonna have a dedicated playlist?

Mark you are exceptionally generous and well organized instructor. thank you very much for your valuable material. well done!!

After 10 years still your material is gold mining. You are exceptional Instructor. Thank you for all your did Sir!❤

Dear Sir, I am an undergraduate and I habe my one year project using scala. How can I contact you. I really need your help.

thank you! amazing explanation

Reminds of Dynamic Programming haha! Great video :)

Simple and informative, just what I needed.

It's too cool

I can barely hear it, even with the volume up

Hello Professor Lewis, I am currently building projects with Scala Play, expected to be the reference for my team, and your playlist has been a huge help to me. I am wondering how you acquired all of this in-depth knowledge of the Play framework. Is it just from your experience, or have you also derived some of it from a book or another source? I have found the Scala Play documentation to be quite surface-level. Thank you for your time.

Thank you for sharing this playlist. It is so fun and easy to follow and genuinely learning and understand how the language works. Thanks for the Vim tips. super fun to use

Scala Spark OR Scala Play Frameworks certificate mile jayega kahi se free of cost ??

What a good scala video, you saved my day!

Hello Mark Lewis, thank you so much for being one of the best scala resource on the internet. I have been learning scala for about 3 months, programming for a year and a half and have been learning a lot from your more recent videos.

thanks :)

@MarkLewis Thanks for putting out these videos on scala. I want to learn programming and big data using scala. Where do I begin with and what should be the sequence I must follow through the playlist, and are there any most recent videos or updated websites of yours available?

Hi mark, need help with email functionality .are you available

Hello @Mark Lewis I really apricate your explanation. It's pretty straightforward and easy to understand. It just saved the entire week of work for me, and If you have time then can you please explain us about Akka streams and how they handle the data particularly about sink, flow, streams.

This exactly what I am looking for after searching for so long on internet!!! THANK!!!

Hi Mark, thanks for your amazing course and I think there's a typo in the caption.

This video was perfect and everything it needed to be and nothing more.

Can't get this to run at all, just constantly get compile errors

10:12 Is this what refactoring looks like in functional language? withJsonBody is some alluring black magic.

After 7 years, those tutorials are the best. Please Mr Mark continue sharing your knowledge is amazingly helpful

useless video.

I Love Scheme. But How did You Made This Programming Language? Tell My Creator Named "Tandya Bima" How

Hi @MarkLewis I tried similar example with number as 50 for fib function using onComplete and the main thread completed before printing the result. If I understood from this video, my future should have waited to receive the value or an exception. Am I missing something? Most of the times, we would need a value from future to do something; hence is Await the only possible option and how should one determine the timeout window?

where our credentials are stored ,,,, when we create new one.

Mark Lewis Created The Programming Language Called "Scheme"? How did He Make it? Can You Make a Tutorial Video About it? I Want to Know The Tutorial of Making a Programming Language. Pleaaaaasssssssseeeeee

Thankyou ! =)

This is awesome and so easy to understand . Video created 8 years ago , still helping people like me ! =) Thanks Mark

thank you, nice explanation

I am glad I completed this playlist, along with a few other playlists of yours. Thanks a lot, professor for your content. I really can't find any good content related to Scala online except for yours. Thanks, a lot

We were preparing a documentation about Scala in terms of Programming Language Concepts. You helped us a lot especially about how does parsing happen in Scala.Thanks a lot Mr.Lewis.

Thanks a million for this Could you have mysql Connector config guide I have not been lucky finding one

Been looking everywhere for this kind of tutorial. Thank you!!

Git link is very helpful, Thanks