7 Design Patterns EVERY Developer Should Know

[@noodlespwn42]

most of these are intuitive. it's great to formalize these concepts and this video does a great job at providing a high level overview of them. thank you

[@ivanlawrence2]

I love the format of your videos... I also love that in your examples of each pattern you are also reducing the nesting and using early exiting which is the opposite of what the people in the repo I'm currently in have done. My first pass for just about and change is 1st to reduce nesting, 2nd try and apply the appropriate pattern (like taking a constructor with 30 params and converting to a builder pattern, or passing in an object which implements the builder pattern, which means now I'm the lucky SoB who gets to go "fix" all the other code), 3rd weep and commit

[@ivanlawrence2]

Oh, and "bless your heart" hit me right in the feels... and pronouncing facade the way JFK might have done it (fah-Kay-d) is how I like to explain it ;)

[@RafaeldaSilvaPeres]

Yes YES WE LOVE ANALOGIES! Please! Best way of teaching and learning! Starting from the big picture, analogies and then down to the specifics! People seems to want to glorify knowledge sometimes by hitting with the specifics right on their face making them watch and rewatch or just give up on it, but this way u go helps alot!

[@derivadadekonoha]

This is the most easiest way knowing to concepts of the design patterns I've ever found. Your clean and structured way of teach gives us the only task of learn, as easy as possible. Thanks for this amazing content....

[@pouyababaie2159]

This was the most easy way to understand all of these standarts. Thanks ;)

[@mykalimba]

Great explanations. I had to watch the section on the Builder pattern a few times over to make sure I didn't miss this, but I think you glossed over the most important step in how this works. The key is that each of the methods that initialize something returns the object itself (i.e. "this") as the return value, so that it's possible to chain calls to those methods as you demonstrated. An astute viewer could pause the video to see this in your code, but I think it's worth an explicitly mention.

[@KineticCode]

To newer developers - when you learn design patterns you generally think "oh i can use this here!" in every scenario, making design patterns your hammer and every code problem a nail. In my experience as a professional developer I have never - not once - deferred to the Design Patterns book to solve a problem. Everytime I had used one in my personal projects however - it was always an imperfect fit to a similar problem. You could say "skill issue" but I'm just pointing out that you should not worry about these things before you're employed. Just make things!

[@mattwayne9128]

Newer developers, you shouldn't be making the decision to not study software engineering concepts based off the anecdotes of anonymous KZbin commenters. You will write bad code as you start off. It's inevitable. That's why you practice. Not learning this because of the nebulous idea that you might use it where it "shouldn't be used" is ridiculous.

[@itztlacoliuhqui]

Yeah its not a hammer. Its like 23 different tools actually. Hammer included

[@KineticCode]

​@@mattwayne9128 There's a lot of things to learn when starting. There's alot of concepts with varying usefulness with building software. The real question is what information is most applicable to getting yourself into a position where you can have good mentorship and stability in learning(employed). If you learn software dev because you're passionate about it - my comment shouldn't dissuade a single person because they'll learn these things from genuine interest (as I did!). I'm advocating for learning relevant skills rather than all skills, which in my, yes, anecdotal experience, would exclude Design Patterns. Otherwise it's easy to fall into a sea of theoretical knowledge with no idea of how to apply it practically! I appreciate your perspective btw

[@w花b]

You're not 100% wrong but I made vidéos games and at the end, I was always regretting not making the code more modular for example. It's basically spaghetti code. Design patterns won't make regrets go away but they definitely will make your life easier in the long run for projects you're supposed to build on top of or modify (anything with a long life span)

[@barbara_993]

I would agree if we [in my company] we don't require knowledge about design pattern and usage before employment. I doubt that I will let someone further if they do not know what at least singleton is and how to use it.

[@gavinwilliams4330]

Great video! I love the way you explained things and the way you demonstrated the benefits of each pattern in code.

[@shahabjami3161]

Great refresher! Love these type of vids

[@ianramirez1577]

I learned more from your video than in the university. Thank you and regards from México

[@Zeraltz]

Finally I understood these design patterns, you know how to explain things! subscribed

[@HP_Tubcraft]

this is a great video! fellow java dev here. i'd love to see more java / spring boot stuff! not enough good java / spring boot influencers on YT imo

[@jamiecodes96]

This was so good. I’m sharing it with my dev team! Thank you

[@WiktorWandachowicz]

19:54 "And I know this is gonna hurt some feelings. A lot of y'all are just 'IF ELSE-ing, IF ELSE-ing' everything. You know WHO YOU ARE!" Pure gold 😁🤣😂

[@codeman99-dev]

21:31 The notify private method is doing the wrong thing. It should be emitting an event that the subscriber can listen for. The whole point is that the acting class does not need any collection of who wants the result of the action. You emit the result.

[@Kenny-st8cg]

Correct, I don’t think he really understands what the observer pattern is.

[@drushkyy2017]

hey my friend, please do more videos where you just show us the code and teach it as you go. you do a great job of explaining simply!!!! thanks

[@Gigusx]

4:35 nice colors!

[@sebastianalfaro1887]

i was needing this this morning haha, thanks dude!

[@ElHirani]

Thank u im new with these kind a type of things , cause i recently learn oop so this video help me a lot in any terms

[@elki_8]

Thank you!! I got exams about exactly those patterns next week!

[@totollygeek]

Really cool video, kudos. I giggled when you called them “freedom units” 😂

[@juancriolivares]

Great explanation. Beside these ones, I really like the decorator pattern.

[@mcstephen]

A Video i never knew i needed. Thanks alot, for real, thanks.

[@bradchellingworth5973]

first time viewer here, listening to this in the background and keep thinking im getting a lesson from Matthew McConaughey

[@tiagodev5838]

Great instructional video, thank you! Also, "Freedom Units" is one of the most American things I've ever heard haha!

[@ashishsapkota945]

I came to find out that I have been using most of those patterns without knowing what they were

[@diabeticnomad]

6:00 oh shit! That just solved a problem I had sweet thanks

[@Ni7ram]

about subscriber pattern.. i know its useful, and the core of reactive prograaming, but I dont see the advantage in this example. i mean you say loop through users is not performant, but it ends up using a foreach, that is essentially the same. the thing is, i dont think it can be done without looping the array somehow great video as always man

[@TVDaJa]

Yeah I was thinking the same thing. I always thought the big improvement it provides is de-coupling things that need to SOMETIMES exchange some data/signals

[@kingcrashplays]

I believe it would be more useful when let’s say a subscriber only wants to be notified for specific events, not all events. Perhaps a user subscribed to a channel doesn’t want to be notified a new video is released but is still a follower of the channel.

[@parttimewarrior5789]

I don't know who this comment is for, but this feels like watching an Adam Ragusea video except about programming

[@ImNotAshhhhhhh]

I feel like a lot of the issues that design patterns resolve can be fixed with simple static classes with static methods

[@NebulaM57]

Freedom Units, I like that. :)

[@TAHppled]

I clicked subscribe as soon as he said “freedom units”.

[@cris7775]

Love It, great explanation

[@BooksWeCanRead]

100% want you to explain everything to me 😅💜

[@pawel_890]

When can we expect a video of Rust on NixOS on Neovim?

[@circle4106]

Factory pattern is so much more flexible when you're able to overload the method.

[@owenrossi-keen2594]

Agreed, however: Typescript + object parameter makes this effectively a non issue in 99% of cases. There are situations where I wish TS had proper overloading though... One thing you can do to get around this is spread your params and type them as XOR. This is the best solution I've found for getting something that looks like Java over loading.

[@circle4106]

@owenrossi-keen2594 exactly answers the question i had on implementing this overloading technique on TS, coming from Java 😂. Thanks for the insight.

[@KimHenriksen.]

Great video! “I’m looking for an AI tool that can quickly translate KZbin videos into Danish and play them with Danish speech. Ideally, it should be able to extract subtitles, translate them, and then use text-to-speech technology to provide the audio in Danish, all in sync with the video. Any recommendations or solutions would be greatly appreciated!”

[@rojinbijukchhe44]

Thank you man :)

[@stereocodes]

do you typically write all your JS in classes? no? would've been good to see these written in the way we write JS using closures and higher order functions.

[@jasonford7439]

@ForrestKnight Kinda random but can you drop a link to your chair model? Does the seat tilt too or only the back?

[@lutfiikbalmajid3128]

Hi, Your new subs here! i like your video, the way you explain, and some little jokes you put in this video haha

[@scarymojo5809]

Would you still use the adapter pattern if you only accessed the slightly wrong API or library in one location in your codebase?

[@youcefmoulla1828]

Amazing video, Thank you

[@kamilzielinski504]

another chapter of OO devs solving issues they created

[@ShootFirstNS]

Is the book ok for beginners? Like me? Learning JavaScript? I read a review and it said that because it's so old and technical a noob like me would just get confused and would struggle to see how the techniques would apply to my journey learning to program. I've put it on a list either way.

[@asagiai4965]

I see that's why youtube is sending me notifications from weeks ago.

[@SonAyoD]

fantastic video

[@Dr.Schnizzle]

Correct me if I’m wrong, but isn’t the strategy pattern the same as polymorphism?

[@narcissekabongo2616]

which vscode theme are you using brother?

[@snowman1185-v]

Very nice. Thanks. :)

[@aidanthompson5053]

4:08

[@wiktor99321]

Whats your color theme called?

[@vasiavra]

hi what keyboard is that ?

[@floristrading8418]

actually really fucking good

[@Sam-u3s7n]

:D I am trying to study here --- why is the surf video ?? lol

[@Jaybearno]

Does anyone have recommended reading or examples on what to do if you inherit a horrendous code base that has every anti pattern imaginable? Would you try to encapsulate in a better design and unravel it? Or just nuke and start over.(keep in mind the latter will cost social capital). Help!!

[@codewithfelix3940]

Had never written type script before but it looks so much like java which hv written for so long.

[@TheForge47]

Nope, you don’t need any of those design patterns. It’s perfectly sufficient to focus on maximizing cohesion and minimizing coupling. In my opinion, the rest is more about convenience - nice to have, but not strictly necessary.

[@onzl9477]

Tbh, hammer does solve everything.

[@kaktysocraft4386]

Хорошо 👍

[@Sam-dh7fr]

facade pattern : "ehhmmm, that's a bit too much code, so make it a function ". Really? is this what "smart" programmers spend their times with? AI is definitely replacing us.

[@2spiffyytv]

hey does anyone know what kind of keyboard he has?

[@notSoAnonyymus]

Look not everything is nail but if you try hard enough everything is a hammer LOL

[@ashersilver7388]

Its all puzzle pieces. But they take so long to write!

[@tawandagamedevs]

builder pattern is irrelavent if the language has named parameters

[@thomaswilliams4755]

Not necessarily. `StringBuilder` is useful for when you need to build a long string, and iteration or conditional checks are involved. It'll save on the expensive costs of string concatenation (by maintaining and resizing an array for you behind the scenes, much like Java's `ArrayList` or C#'s `List` work).

[@bertiesmith3021]

@@thomaswilliams4755C++ programmer here I thought that the #1 point of StringBuilder is the efficient concatenation (which high I am led to believe can be really bad), rather than it being an implementation of a builder pattern. C++ has a similar problem but because strings aren’t immutable it is much less of a problem. It’s still worth worrying about, though, and Google’s StrCat solves this (and I have written my own versions many times).

[@seventeeen29]

Mocking a singleton is a skill issue

[@Hellbending]

Is that… a js… class???

[@IMustHaveThatApe]

Forrest you need a wrist rest (that red sore at the base of your right hand)

[@bertiesmith3021]

Freedom units!

[@deatho0ne587]

You are hiding something on the Strategy Pattern. How does a user pick the car vs bike vs walk vs ... That still has to be done. User clicks dropdown and picks, then clicks a button cause most likely there is something else in there like does user eat at home vs McDs vs not eat at all vs ... To be fair I use all of the patterns depending on what is needed, but I do not think this is a whatever pattern it is just done.

[@ChrisOfSDUB]

Where's the decorator?

[@PiccoloBoruDaimao]

Where Is The Best Practice To Learn Java

[@ep4r4]

excelente en ESPÑAOL

[@SogMosee]

I will never use classes! Nevar!!

[@muruganr4581]

I really enjoy the sarcasm, programming was much simpler until Strict OOP and Typing languages became the mainstream. At the end of day most stuff a glorified mess.

[@brayanyevenes5954]

ForrestKnight, is it possible to include all the examples in a repository in your github, so I can have it in my favorites and I can check when to use which pattern according to the examples.

[@Franky_PT]

Why am i hearing this in portuguese???? How do i turn it off

[@AdamDymitruk]

Don't use any of them, maybe by accident. Not mentioning event sourcing is a crime.

[@ramb0lxmb]

i passed it into the factory then i wrapped it in a adapter, b

[@kevinurielfonseca]

Basically this is an OOP approach, am I right?. The last time i wrote code like that was at 2019 lol. Nothing wrong with it but i dont think is necessary in JavaScript or web application unless your building something for an OS. C#, Java, C++ can all benefit from it, other than that....not really.

[@Zonord]

как говориться забей болт

[@nkangprecious4339]

TypeScript for design patterns? Skill issues

[@anthonysalls]

Abstraction hurts decernability and debugging.

[@berrycade]

Silly little OOP programmers always trying to fit nuanced ideas into neat little boxes. Focus on what your code does not what it “is” because that honestly doesn’t matter at all.

[@aakkii5271]

Stupid remark, everything has a use, design patterns included, they are not rules, they are tools you decide to use when designing your software. What your software does is the easiest part of programming, making it functional is simple, making it performant, scalable, readable etc. is the real challange, and design patterns have tradeoffs in that regard

[@berrycade]

@@aakkii5271 is my remark a member of stupid or is it serving a stupid purpose?

[@TragicGFuel]

@@berrycade all true what you said, except it's far easier to use design patterns as jargon to explain other people with the same knowledge. Compared to going through each step in the functional domain.

[@berrycade]

@@TragicGFuel I’m not even really advocate for functional programming; in fact, i think most functional programs are convoluted just for the sake of being convoluted or in pursuit of “purity” at the cost of clarity and most other conventions that make code comprehendible. But at least FP wraps everything in logic - in Java I literally can’t have behavior unless cram it to some worthless object first. Classification can work with nouns sometimes but throw verbs into the mix and you’re begging for a clusterfũ.ćk. And the people who made these design patterns are just adding another layer of abstraction to add to the confusion. The world is not black and white, so we shouldn’t code that way either.

[@diabeticnomad]

Not really true if you the creator don’t focus on what it is future maintainers can’t focus on what it does 💜

[@animelemon1]

first!!

[@binarystar-y9w]

Any advice on what tech job to pursue for long term safety?

[@Hellbending]

Mans out here on that “I might use Arch, btw + SplitErgoSoonTM + vim motions + Rust Gang” train and still putting out bangers? Lessgoo 💪🫡