arkatsy

import { useSyncExternalStore } from "react";
// For more on the useSyncExternalStore hook, see https://react.dev/reference/react/useSyncExternalStore

// The code is almost identical to the source code of zustand, without types and some features stripped out.
// Check the links to see the references in the source code.
// The links are referencing the v5 of the library. If you plan on reading the source code yourself v5 is the best way to start. 
// The current v4 version contains lot of deprecated code and extra stuff that makes it hard to reason about if you're new to this.

// https://github.com/pmndrs/zustand/blob/fe47d3e6c6671dbfb9856fda52cb5a3a855d97a6/src/vanilla.ts#L57-L94
function createStore(createState) {

ClickerMonkey

// when T is any|unknown, Y is returned, otherwise N
type IsAnyUnknown<T, Y, N> = unknown extends T ? Y : N;
  
// when T is never, Y is returned, otherwise N
type IsNever<T, Y = true, N = false> = [T] extends [never] ? Y : N;

// when T is a tuple, Y is returned, otherwise N
// valid tuples = [string], [string, boolean], 
// invalid tuples = [], string[], (string | number)[]

ryanflorence

Reach UI Philosophy

Reach UI is an accessible foundation for React applications and design systems.

The three equally important goals are to be:

• Accessible
• Composable
• Stylable

sebmarkbage

I heard some points of criticism to how React deals with reactivity and it's focus on "purity". It's interesting because there are really two approaches evolving. There's a mutable + change tracking approach and there's an immutability + referential equality testing approach. It's difficult to mix and match them when you build new features on top. So that's why React has been pushing a bit harder on immutability lately to be able to build on top of it. Both have various tradeoffs but others are doing good research in other areas, so we've decided to focus on this direction and see where it leads us.

I did want to address a few points that I didn't see get enough consideration around the tradeoffs. So here's a small brain dump.

"Compiled output results in smaller apps" - E.g. Svelte apps start smaller but the compiler output is 3-4x larger per component than the equivalent VDOM approach. This is mostly due to the code that is usually shared in the VDOM "VM" needs to be inlined into each component. The tr

ryanflorence

import React, {
  cloneElement,
  useState,
  useEffect,
  useRef,
  HTMLAttributes,
  ReactElement
} from "react";

////////////////////////////////////////////////////////////////////////////////

threepointone

https://twitter.com/snookca/status/1073299331262889984?s=21

‪“‬In what way is JS any more maintainable than CSS? How does writing CSS in JS make it any more maintainable?”

‪Happy to chat about this. There’s an obvious disclaimer that there’s a cost to css-in-js solutions, but that cost is paid specifically for the benefits it brings; as such it’s useful for some usecases, and not meant as a replacement for all workflows. ‬

‪(These conversations always get heated on twitter, so please believe that I’m here to converse, not to convince. In return, I promise to listen to you too and change my opinions; I’ve had mad respect for you for years and would consider your feedback a gift. Also, some of the stuff I’m writing might seem obvious to you; I’m not trying to tell you if all people of some of the details, but it might be useful to someone else who bumps into this who doesn’t have context)‬

So the big deal about css-in-js (cij) is selectors.

ryanflorence

let UserContext = React.createContext();

class App extends React.Component {
  state = {
    user: null,
    setUser: user => {
      this.setState({ user });
    }
  };

ArcanisCz

/*
* Usage: 
* const AppProvider = createProvider(rootReducer, rootSaga);
* ...
* <AppProvider>
*   <AppComponent>
* </AppProvider>
*/
const createProvider = (reducer, saga) => {
  const sagaMiddleware = createSagaMiddleware();

Aghassi

version: '2'
services:
    plex:
        image: linuxserver/plex
        container_name: plex
        volumes:
            - /path/to/plex/config:/config
            - /path/to/plex/Movies:/data/movies
            - /path/to/plex/Shows:/data/tvshows
            - /path/to/plex/transcode:/data/transcode

ebidel

Moved to https://github.com/ebidel/puppeteer-examples