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import { useEffect, useRef } from 'react';

function getItem(storage, key) {
  const value = storage.getItem(key);

  if (!value) return null;

  try {
    return JSON.parse(value);
  } catch (error) {

maraisr

Implementation notes on react's scheduling model as of (shortly before) 16.8.0

While the public API intended for users to use is the scheduler package, the reconciler currently does not use scheduler's priority classes internally.

ReactFiberScheduler has its own internal "mini-scheduler" that uses the scheduler package indirectly for its deadline-capable scheduleCallback.

This is kind of a documentation of implementation details that I suppose will be gone by the end of the year, but what can you do.

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type Deferred<T> = {
  resolve: (value: T) => void;
  reject: (value: unknown) => void;
  promise: Promise<T>;
};

function createDeferred<T>(): Deferred<T> {
  const d = {} as Deferred<T>;
  d.promise = new Promise<T>((resolve, reject) => {

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/*
  Makes your remote containers low level API accessible via:
  
  import accessFederatedContainer from "access-federated-containers";
  accessFederatedContainer("app2")
*/

/** @typedef {import("webpack").Compiler} Compiler */
/** @typedef {import("webpack").Compilation} Compilation */

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 export const map = <T, O>(map: (input: T) => Promise<O> | O) =>
    async function* mapGenerator(asyncIterable: AsyncIterableIterator<T>) {
      for await (const value of asyncIterable) {
        yield map(value);
      }
    };

export const filter = <T, U extends T>(filter: (input: T) => input is U) =>
    async function* filterGenerator(asyncIterable: AsyncIterableIterator<T>) {

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const useLocalQuery = <TQuery extends {response: any; variables: any}>(
  environment: Environment,
  query: any,
  inVariables: TQuery['variables'] = {}
): TQuery['response'] | null => {
  const variables = useDeepEqual(inVariables)
  const [dataRef, setData] = useRefState<SelectorData | null>(null)
  const disposablesRef = useRef<Disposable[]>([])
  useEffect(() => {
    const {getRequest, createOperationDescriptor} = environment.unstable_internal

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Folder Structure

Motivations

• Clear feature ownership
• Module usage predictibility (refactoring, maintainence, you know what's shared, what's not, prevents accidental regressions, avoids huge directories of not-actually-reusable modules, etc)

maraisr

#!/bin/bash

wget -qO- https://get.docker.com/ | sh
sudo usermod -aG docker $(whoami)
sudo systemctl enable docker.service
sudo systemctl start docker.service
sudo yum install -y epel-release
sudo yum install -y python-pip
sudo yum upgrade -y python*
sudo pip install docker-compose --force --upgrade