LINQ + Lambda expressions - C# tutorial 

My only wish is that this video was 35 minutes long with 20+ examples instead. So great!! Thanks a ton!!

As a fellow game developer, I humbly suggest your tutorials to my team, especially the simplicity and real world samples are just on point. Keep up the good work and thank you for sharing👍

This tutorial was perfect, I really like how you compared lambdas to a more simplistic loop. It helped it click in my head

You break things down and explain it really well. Also your voice is clear, calm and not rushed. And no stupid drawn-out intros. Thanks for posting - will watch more of your tutorials.

THANK YOU SO MUCH. I've been looking everywhere for a tutorial which really deconstructed lambda expressions, but couldn't find one anywhere. You are a lifesaver.

While i agree that lambda's are awesome, what you're mostly focusing on here is LINQ, and NOT LAMBDA's (though you are using lambda's with linq, which isnt not really required). The select/where/orderby/etc are all LINQ functions. The "n => n>5" is the lambda part. Everything else is LINQ. Lambda's have FAAAAR more uses than just LINQ. And LINQ can be used without lambda's.

That Cyberpunk joke cracked me xD

This is extremly helpful. I've known a bit about lambda functions before but making one actually blew my head off.

This actually was so simple but helped so much, I hope you can do a “C# tutorial series” or something along that line! Keep up the good work man

I have struggled with lambdas A LOT (I think mainly because most examples of it that I had seen were so abstract and high level), but this has been probably the best explanation of them yet. Thanks!

There's also the thing about performance. Althought in many case LINQ is fasterish and less bug prone than manual foreach ( things like .Except() and especially parallel aggregation), most of the time LINQ will be slower, because of the overhead of delegate invocation. And not even speaking about for loop which is way faster then foreach. So if you actually need to care about performance for example rendering, real time data analysis, etc. it's good to be aware and benchamarking of test subset won't ever harm you.

I enjoy your videos. Though I've been using and making lambda functions for some time, seeing them this way taught me something new.

I like this video because you encourage people to look into other options. :) Keep up the good work!

You could honestly teach teachers how to teach. You're that good.

Great video! Really glad to see tutorials that cover more advanced topics for beginners. I do find this tutorial covers a lot of System.Linq, which might cause beginners to mix that up with lambda expressions. Lambda expressions is simply a short hand to create an anonymous function. I think it might be beneficial to cover the following: - Differences between anonymous functions and Linq/Extension methods. - Other usage of anonymous functions (i.e. assigning a function to a variable/parameters, callback using System.Action)

The world of lambda expressions seemed so harsh and difficult, until I saw your video. Thanks for the simplicity 🙏

Great video. Always good to refresh your knowledge or learn new stuff

Hey man, i have to say it, your explanation was crystal clear. It was as relaxing (no noisy music and what's up boyz) as it was helpful. Thank you.

RU-vid has been recommending this video for literally half a week. I should have watched this sooner lol. Great video!

Understood within 2 minutes of the video. Great Job. I need to now practice. Thanks!

This is amazing, thank you so much!!

I have never understood lambda functions before and you just made it so easy. Thank you so much for this video, even if I do feel a bit sick at all the time I wasted writing loops that I didn't have to write.

Man, you never disappoint, thanks!

Wonderful! So easy to understand!

👏👏👏Excellent explanation. Clear and to the point.

Thank you very much. It's really helped me!!

You are a great Teacher. Thank you

Wow, C# is really great, thanks for these infos

Love the threatening aura intro then complete coddling immediately after 🤣 needs to be in more vids

Thank you very much ! Very useful video !

Thanks very much for this, subscribed long ago 🎉

Just to add to all comments above, your typing speed is outstanding😳

very clear and easy to understand!!

Dude you really have a special gift in teaching complicated topics... There's really no better way of breaking down this topic... Thanks for your good work!

Just purely amazing!!

Jacked and C# instructor? I am among my peeps! Thank you for your precious help!!

You sir, are a legend. Thank you for this.

The cyberpunk joke won me over. Good job.

That burn on cyber punk though. God damn! Very informative. I know how to use lamda but not really why it worked that way. Even picked up some new uses. Thank you for a great video!

the best tutorial i've ever seen

That was rad dude!

Man this was great just explained two advanced topics in 6 mins

thanks fam! great video!

Great Tutorial Thanks m8

This was really helpful, great tutorial!

Nice tutorial, and bonus points for including Valheim in the list of Steam games (one of my all time favorites). 😀

there is a downside to using LINQ lambdas instead of for each and that is you can't step through the code that is being iterated upon, so while it may be simpler to write, you are actually making the code much harder to debug. This is fine if the code is simple and will not throw any exceptions but as soon as the code becomes complex and is likely to throw exceptions while iterating through the list then you'll have a really hard time debugging it.. An example of this is using LINQ to initialize a list of objects from a set of records that come from a database. Lets say there is a conversion error when attempting to convert one of the values from the DB into the datatype of the object property you are trying to set. Using LINQ you have no easy way of knowing which item in the list failed. So yeah lambas are great until there is a problem that can only be debugged by stepping through code.

Love the golden ratio used in the list example

Those have a C# background before moving to Unity like me are already using it extensively. During the course I have read on some blogs and Q&A forums that Unity might have performance difficulty while processing these expression. Some even said Foreach loops are bad. But so far I haven't observed any issues. Go for it, you can reduce your code by 30% and less time on maintenance.

I don't think that Cyberpunk reference will ever get old, even if Unity updates their code 10 years from now :D

the intro has this vibe i cannot explain....

Whoa. Solid video

I'm in love with c# wow

Great explanation

Awesome!

very good thank you my friend

This stuff was so much fun to play with. Proceeded to write the dumbest code to make a string basically nonsensical and I couldn't be more proud of my work.

Your videos are AWESOME! You are very didactic, patient and interesting, thank you so much! I've been trying to learn pure C# but whenever I ask questions to a "friend" of mine, he mocks me, says I should have known that already, that my code looks like shit.... You, on the other side, make the learning process productive and healthy. Thank you so much!

best unity tutorial!

If only this video would last for an hour showing examples. Amazing stuff

OMG I FINALLY GET IT. THANK YOU. lol

underrated!

Awesome! Thanks for your content! Not sure if someone already mentioned this before, but as soon as you use foreach in a lazy IEnumerable it will force the query execution. Not sure if that was the intention in your AddRatingToNames method. If you want to stay lazy you could do this instead of using the foreach: return games.Select(g => { g.Name = ...; return g; });

This is more like a System.Linq tutorial than general lambda expressions. But anyways this is still good content.

Been using linq for a while now. Love the lazy processing and REAL composition, not just employing a tool for composition, which is what the ':' really is for c#. there are more rules you have to follow for real composition, but it gives you so much. Which is one of the fundamental reasons why linq is AMAZEBALLZ. I would not be surprised in the least if the first intelligent aliens we meet have something startlingly like linq on the IL level. It is kind of close to a pure logical expression of the act of parsing related data. Maybe we should be pumping low level linq code into space, prove that there's at least some intelligent life stuck to this rock.

Thing I didn't know I needed to know

Gracias Mister Tarodev que poder de las expresiones Lambda.....saludos de los andes peruanos

love your sense of humor

make more of these you're an exam saviour....

Damn good bro

I just feel calm looking at these tutorials and even on the way I'm getting smarter and developing my code knowledge

Subbed.. lovely

Good video

Great ☺

"Cyberpunk destroyed our condition, just like it destroyed our dreams" - Tarodev

damn, this is called lamda? so I did it on accident every time. Learned this on tutorials and didn't knew the other way thx for this :D

compact tutorial!

I feel for you bro. I know that mood.

bro is teaching and doing asmr at the same time

Unexpected bonus for Extension methods at 05:39 !

Hi could you explain unity physics with examples ? Thanks great content btw

Big Like ( within start of a min ) watching this video

"just like it destroyed our hopes and dreams..." - genius.

Hey, what if I wanted it to be based on luckPercentage? I have a dictionary of items, each item has a float luckPercentage Item 1 = 10.0 Item 2 = 40.0 Item 3 = 50.0 So if I would want to take 1 item, item 2 and 3 would be the most often picked, and item 1 would be very rare. How can I achieve something like this?

Question: If there is a list of items separated by two categories (owned and not owned by the player), should I use forloop or lambda? My thought is, if I use lambda, I'll have to do it t twice, thus I presume it loops through the collection twice, whereas running the loop just goes through once to separate the list. Your thoughts?

cyberpunk burn lol, hilarious hahaha :)

More examples, nothing else!

It's all fine and dandy, but hard to debug, which is why we don't use these as often. But maybe you have some debug tips?

oh boy 2:40 hit way to hard. great vid

can i change the value of the list using lambda ? like find the game named factorio, set its steam score to 9, using lambda, without creating a new list.

belleza!

2:40 yup, that's a like and sub right there

Hmm .. It's more of a tutorial on Linq, isn't it? But clear and useful!

Really nice tutorial. The only thing I disliked is that you used var so often. To understand the connections a little better the specific datatypes would have been better for me.

Huh, I don’t know why I’ve never thought to make extension methods for an IEnumerable to basically make my own LINQ functions. Cool idea.

Nice video! Can you share your thoughts on using LINQ in Unity? Anything we should keep in mind?

Always give variables descriptive names because it's not just going to be you reading it. Other than that great video thank you!

What am I missing??? When I do the same code you do I get an error. CS0246 C# The type or namespace name 'Game' could not be found (are you missing a using directive or an assembly reference?)

you can use predicates lamda? right.

I not only use lambda's I use them all of the time with Joins and GroupJoins good times