Immutable JS - Redux Tutorial #2 - React.js Tutorial

Immutable Javascript means that we're never going to change a value once it's been set on an object. It might sound complicated, but it's really quite simple. We simply always create new objects and copy their values over.

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Also watch: "Tailwind CSS - why CSS utility classes save so much time"
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[java]

Crap, my name is Will and I'm 35. this guy is speaking directly to me!

[gabrielbarroso]

I've been checking your channel for the past 6 months or so, everytime there's a new video a smile pops on my face. You're a really amazing person at explaining, I'm not an english native speaker so it's pretty common for me to miss some words while hearing english videos, but this isn't the case with your videos, your way of explaining is really clear, and so is your voice. I'm sure you could monetize these videos but for my own sake I hope they keep being free :). Keep this up please, looking forward to learning Redux

[sshadow]

Wow. Did not know about this. You once again prove you are among the best at teaching JS on YouTube. Thx

[Bingminglin]

Cant wait for the next episode ! Learning redux recently and your redux tutorials are just in time!

[VicusBass]

Tricky title, I was expecting ImmutableJS

[vilesyn]

Excellent series! I can't wait to see more redux tutorials. :D

[titaniumwolf]

Hi Will Sensei

I really have to thank you a lot.
After 1 year of self studying javascript back/frontend on my weekends and afterwork
I've finally got a job in a company in Tokyo where I live (I was an English Teacher).
You mapped out a path for me to aim for and I did it.
I watched most of your videos over and over.
Once I get a credit card I'll be sure to donate to you.
Sorry to be a little emo about it but thanks a million.

Peace Bro.

[universalproblemsolver]

I understood reference types in other languages. Object.assign in JS was new to me. Thank you for adding this to my toolbelt. Following.

[LalitSharma-bntb]

Thanks man You saved the day and not just one day you saved lot of days. Keep the good work up

[saurabhk]

Hi, i would love if u can upload a moderate project video on react, React from zero to Hero.I would love if u can make some API as well and make them public . So that we can also learn how to work with JSOns as well. :) Would be highly appreciated

[frozen_tortus]

You might want to consider changing your title, as it's kind of misleading considering immutableJS facebook library.

[BonifacePereira]

Using a.slice() to create a new copy of an array works well too. Great tutorial

[ntro-p]

Does the same thing happen when using the spread operator and the object you're trying to replicate has a child object/array?
So basically your last example except we would do:
b = { ...a }
b.things.push(3)

same issue?

[adityasrivastava]

great video, you make it very easy to understand.

[this.channel]

I was wondering what this spread operator was and now I finally understand.

[jankalfus]

Thanks for the videos, man! They are all great and I'm really looking forward to your next ones on Redux. I think the pace is just right if people have at least minimum knowledge of React and Flux.

[ShobhitGupta]

Can't wait for the next Redux video.

[mk-wqrc]

Cool tutorial and you deserve one more subscription .!

[jubamatos]

Very nice! What "command prompt" app are you using on this video?

[vivianeb]

Really nice tut. Now of course we can also use the spread operator or rest syntax in functions.