Echo JS 0.11.0

#1 portions are dated and overly simplified, the browser DOM has seen a lot of significant improvements, and so has React...

#5-4 JSX is *not* complex at all imho... some developers don't like it, and there's a heavy overlap with developers who don't like JavaScript in general, or like tech in different files or prefer general templating DSL.

#9 part is demonstrating CommonJS vs ESM ... the other is React's legacy interface VS class based inheritance, which is supported natively in all modern browsers (though JSX isn't without transformation).

#10-2 React supports both SSR and client

#12 ignores functional components

#13 doesn't explain functional components

#16.1 is wrong, state isn't received from the parent (not to be confused with state initialized from prop, or context)

#16.5 likewise with 16.1

#16.6 both no, you can send a function/event handler for child to bubble out, or use context.

#18 fat-arrow is a JavaScript thing as of ES6, not specific to react.  It is a context bound lambda expression.

#21 neglects functional component hooks.

#23 unbound function

#25 example is just plain *WRONG*

#27 demo is wrong

#28 demo is wrong

... not reading beyond #28 ...