justblender

import { useEffect, useReducer, useRef } from 'react';

import { useNavigation } from '@react-navigation/native';
import { useSelector } from 'react-redux';

const undefinedRef = Symbol();

const refEquality = (a: Object, b: Object) => a === b;

export function useAppSelector<Selected = unknown>(

gaearon

function MyResponsiveComponent() {
  const width = useWindowWidth(); // Our custom Hook
  return (
    <p>Window width is {width}</p>
  );
}

wheelo

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

jlongster

I did some poking around CodeMirror and how it works, particularly with it's current code folding implementation. My goal was to see if there was a way to only have part of the string in memory, render those parts, and still have line numbers be correct. My goal was to have the editor display something like this:

1 
2 
3  function() {
27 }
28

acdlite

// getComponent is a function that returns a promise for a component
// It will not be called until the first mount
function asyncComponent(getComponent) {
  return class AsyncComponent extends React.Component {
    static Component = null;
    state = { Component: AsyncComponent.Component };

    componentWillMount() {
      if (!this.state.Component) {
        getComponent().then(Component => {

ghaiklor

Interpreters/Compilers

• Let’s Build A Simple Interpreter
• Let's Build a Compiler, by Jack Crenshaw
• Project: A Programming Language
• Understanding Compiler Optimization - Chandler Carruth - Opening Keynote Meeting C++ 2015
• Adventures in JIT compilation
• Juozas Kaziukėnas - Building An Interpreter In RPython - PyCon 2016
• Anders Hejlsberg on Modern Compiler Construction
• Build Your Own Lisp

nsimmons

Updates without submitting to App Store

This is allowed for ReactNative apps. Source

AppHub.io is one option, open source coming soon.

Building a ReactNative app with Swift

See facebook/react-native#2648

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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