necolas

import createHoverMonitor from './createHoverMonitor';
import { element, func, oneOfType } from 'prop-types';
import React, { Component } from 'react';

const hover = createHoverMonitor();

/**
 * Use:
 * <Hoverable>
 *   {(hover) => <View style={hover && styles.hovered} />}

kakadiadarpan

Async in Redux

This is a CFP for ReactiveConf open call for lightning talks. If you'd like to see this talk become a reality, please ⭐️ star this gist. #ReactiveConf

If you're on your phone, please request the desktop site to star this gist 😇

cvbuelow

import { combineReducers } from 'redux';
import users from './reducers/users';
import posts from './reducers/posts';

// Inject the initial state for async loaded reducers
function injectState(reducers, preloadedState = {}) {
  return Object.keys(reducers).reduce((finalReducers, key) => {
    if (typeof reducers[key] === "function") {
      finalReducers[key] = (state = preloadedState[key], action) => reducers[key](state, action);
    }

gaearon

import { combineReducers } from 'redux';
import users from './reducers/users';
import posts from './reducers/posts';

export default function createReducer(asyncReducers) {
  return combineReducers({
    users,
    posts,
    ...asyncReducers
  });

gillesdemey

func getQueryStringParameter(url: String, param: String) -> String? {
        
    let url = NSURLComponents(string: url)!
      
    return
      (url.queryItems? as [NSURLQueryItem])
      .filter({ (item) in item.name == param }).first?
      .value()
  }

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

isaacs

echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh