JavaScript for React Developers | Mosh




Master the Essential JavaScript Features for Building React Apps.

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TABLE OF CONTENT:

01:45 Let vs Var vs Const
05:39 Objects
08:26 The this Keyword
11:17 Binding this
13:55 Arrow Functions
18:12 Arrow Functions and this
22:29 Array.map Method
26:06 Object Destructuring
28:37 Spread Operator
32:41 Classes
36:28 Inheritance
40:33 Modules
44:45 Named and Default Exports

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39 responses to “JavaScript for React Developers | Mosh”

  1. I was going through modules, there I encountered an error in the console stating "Unexpected token {", when i included all the files(just for checking), i found out that for the person.js , it gives me unexpected token export. help me how should i run this one?

  2. I hate JS … but I need to learn react for my job, so I started to learn JS, now I find it not so bad … but still really weird, it behaves really strange compared to PHP or C++ that I used to program and work with… but its kinda fun, but still really weird and I don't like a lot of things that JS does.

  3. Mosh you are one of the best teachers on the internet. I have bought several courses already! Keep up the good work. Hopefully you can add the udemy-like bookmark feature in your courses online soon, through your website.

  4. I started learning React a few days ago and thanks to this video I can finally understand concepts like super(props), extends and overall classes, which I've never used in vanilla JS, so it's always been kinda of a scary topic to me until now. Another thing that I was confused about was the this key word in arrow functions, you explained that in such a fine way that I could finally understand what appeared to be a very complex concept. Thank you so much, you are definitely one of the best instructors one can find on the internet. I will closely follow your content, I really like your teaching style.

  5. Unable to get Modules @40:33 to work.
    Initially get error: "Uncaught SyntaxError: Unexpected token { " for first line in index.js which is ……import { Teacher } from "./teacher";
    Have added "type=module" to script tag but then getting CORS error:
    "Access to Script at 'file:///home/alan/jsmosh/index.js' from origin 'null' has been blocked by CORS policy: Invalid response. Origin 'null' is therefore not allowed access."
    What am I doing wrong?

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