JavaScript Classes vs Prototypes

This tutorial discusses the differences in syntax between creating objects in javascript with the class keyword or with the prototype methods.
Examples are given of doing the exact same things with both versions.
It is important to understand that the class syntax is being interpreted as using the prototype syntax and that CLASSES do NOT exist in JavaScript.

Code Note: line 50 should be
We are setting the prototype of EmployeeP's prototype to link to the prototype of PersonP.

[judaspriest]

I can probably count on one hand how many truly clear and straight forward youtube coding tutorials I've watched, this is one of em, hitting subscribe!

[IONYVDFC]

Great video! Being an old-school C++ developer, I personally never understood why JavaScript ever needed to borrow the class syntax. One cannot really deny anymore that classes exists in JavaScript, they surely didn't. I prefer the syntax 'prototype' above 'class'. Many early C++ book editors around 1990 had a hard time explaining what a class is all about, almost apologetic for the confusing word choice. A prototype really says what it does, as it shapes how the instantiated object will look like, while a class has nothing to do with classification.

[machineshouldbe]

My head is still spinning, but this breakdown helped me understand how to use classes more. Thank you so much.

[rotrose]

I never dreamed I can understand these class things, but after this tutorial, those abstract things go straight into my head without any resistance. legend teacher, as always thank you.

[NourHomsi]

I've been a Javascript programmer for more than 10 years, but suddenly, you opened my mind to a whole new sight to OOP in Javascript !!

[igoroliveira]

Steve, you are the ONLY ONE I found online, that explained well enough so I could understand, I always tried to find a relationship (a kind of "translation") between functions and classes and you simply explained it. Perfect video. Thank you very much.

[Maru-gejn]

No bs, straight to the point, clear explanations with clear examples. So underrated!

[barungh]

"It is important to understand that the class syntax is being interpreted as using the prototype syntax and that CLASSES do NOT exist in JavaScript."

Great 👍

[sahasrabhujaneuron]

This is exacly what I'm looking for! Now it makes more sense why the syntax in class is constructed in a bit of a weird way. Many thanks!

[LR-bcjs]

I think in 11:16, the line should be Object.setPrototypeOf(EmployeeP.prototype, PersonP.prototype) instead.
Great video! I love it! <3

[manjoujanzen]

great way to explain, clear and in a not too fast speed, so the brain can follow. thank you for the great tutorial.

[Claudia-hzly]

Omg! I finally understood prototypes - I have watched three different tutorials and I still did not get that...until I came across this video! Thank you so much!

[josiahtobas]

searching for a clear instructional video on this topic, finally found it. Thanks a lot.

[pkn]

After 10 videos on constructors, classes, and prototypes in javascript, finally a video that makes me really understand....thank you.

[JT-mrdb]

A lot of libraries use the manual prototype method and there are some neat tricks you can do with it. I first saw this when analysing mongoose code.

There are some challenges if you want to represent this with types in a typescript project, I found using class syntax to be less pain in that regard.

[adirbarak]

such a good tutorial, you don't skip anything and actually understanding what's a class doing and how to simulate it using prototype explains the logic behind it.

[abdouthiam]

This is so useful I cannot explain how much it made my learning prototype easy

[JeatBunkie]

So happy I found your channel, I could cry! You’re making every subject I was shaky on just make sense!

[glenottley]

What a clear and insightful video on what can be a very complicated concept! I've saved your 'JavaScript from the start' playlist and will be working my way through, one per day. Thanks Steve for the great education!

[aaaaaab]

Thank you so much. I am not good at english but your explanation is amazing. I can understand whole things. Thank you.