Pure Functions / Intro to JavaScript ES6 programming, lesson 17

Very good expansion!!!!!

I love how he does the irl box functions

Wtf, I just found this channel, the explanations are just incredible, i'm terribly sad they have stopped tbh

thank for sharing <3

you do the best videos to explain javascript, thaink you!

Excellent explanation, the examples provided were mind-blowing you guys must be very intuitively knowledgeable about defining in that way. I loved it keep it up, really helping us.

Couple of things to add:
In functional programming paradigm:
1- Even the argument itself that is sent to a function MUST NOT be changed, this is thought of as an evil behaviour. For example, if a matrix is sent to a function, the function is not allowed to manipulate its entries. It can only copy it and manipulate the entries of a copy (could be expensive).
This is so crucial, that in Julia programming, they stipulate that a function should have a bang "!" in its name as a grim reminder to the user that this function has evil behaviour.
2- A MASSIVE consequence of this style is: Object Oriented Programming is bullshit. That's simply because methods of class have access to data of the class (self). In fact, the quintessence of OOP (combining data and code) is antethical to the spirit of functional programming that says a function is a function, it is separate from data.

Just like Dynamic Programming is flexible and feels awesome for a beginner and fails miserably in large projects, OOP to FP is similar. Once your code is in order of tens of thousands of lines, you can't track what's going on and you start to appreciate functional programming.

10/10

Nice explanation

wow, awesome explanation

we should invent a term of PURE TUTORIAL.. I'm surprised why you stop producing this type of AMAZING work !!

kudos for the effort, flowless delivery

The best explanation of Pure function I have gone through online till now. This is the first video of your channel I watched and I just immediately subscribed. 👍

I really enjoyed this series. Hope you will continue. I am going to watch it again 😀

Why not more video ,,, Looking for more video

I've achieved zen after watching this video

So, the non-deterministic functions are also known as "higher-order functions"???

you re genius

Amazing explanation! Thank you!

great explaining, thx for ur time

Awesome video !!!!

You guys rock! A video about JS Prototype would be great =)

Excellent explanation.

this video deserves more views.... and this channel deserves more subscribers

make more videos about JS.. love your explanation

today i really understand what are sideeffect, purefunction and deterministic.

Really love these videos. Hope you’ll make more!

Not a single example in the whole video and I still have no Idea what a pure function is. Apparently it's just better

This is freaking AWESOME ✨🔥🚀! Please keep updating, thank you!

Thanks! Really interesting and easy to understand

when are you going to release more?

love this video ! Thank you !

Dun stop making video , i bought many courses ended up i confuse myself with all the concept and theory now all making sense to me after watched your video.

Very good content.

wow very good visual explanation, difficult to forget !, thanks

Great job. Thank you.

why did you stop? that's fantastic :)

And I bet u.. I was destined to watch this video today. :D

this is some next-level video, just wow!

Amazing explanation, this is the best explanation I ever seen about Pure Function. I'm illuminated!

great video! some code will provide more practical eg

the video is as fancy as the word of 'consequence'!

Very useful! The way of explaining was so clear .How you relate and give the overall picture was awesome!

plus the notes on your lessons are really useful

bra this is some really original shit. really good content