ReactNirvana1.js

TERMS:

- inheritance (super)
- imperative vs. declarative
- managed inputs vs unmanaged inputs (make sure when you google prepend "react"):
  https://reactjs.org/docs/uncontrolled-components.html
- "pure functions"

https://hackernoon.com/react-stateless-functional-components-nine-wins-you-might-have-overlooked-997b0d933dbc
https://www.sitepoint.com/functional-programming-pure-functions/
https://en.wikipedia.org/wiki/Pure_function


const pureFunction = (a, b) => {
  return a + b
}

// getting impure function
const impureFunction = (a, b) => {
  return a + b + window.history.entries.length
}

// setting impure function
const impureFunctionB = (a, b) => {
  window.foo = a + b
  return a + b
}

"SIDE EFFECTS"


- React Parent To Child Communication
- https://reactjs.org/docs/lifting-state-up.html


https://www.google.com/search?q=react+parent+to+child+communication&oq=react+parent+to+child&aqs=chrome.0.0j69i57j0l4.4566j0j7&sourceid=chrome&ie=UTF-8