brigand

updateIfChanged is a pattern that allows preventing updates based on a unique key. It inverts control of updates from a dumb child to the smarter parent. It's particularly useful because it can avoid the normal issue of children and callbacks causing a rerender when it's not truly required.

The alternative workaround is usually memoizing the children and callbacks which can be expensive, complicated, and leak memory.

Implementation

import deepEqual from 'lodash/isEqual';

NickCraver

##################
# Privacy Settings
##################

# Privacy: Let apps use my advertising ID: Disable
Set-ItemProperty -Path HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\AdvertisingInfo -Name Enabled -Type DWord -Value 0
# To Restore:
#Set-ItemProperty -Path HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\AdvertisingInfo -Name Enabled -Type DWord -Value 1
# Privacy: SmartScreen Filter for Store Apps: Disable
Set-ItemProperty -Path HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\AppHost -Name EnableWebContentEvaluation -Type DWord -Value 0

iamralch

package main

import (
	"fmt"
	"io"
	"io/ioutil"
	"net"
	"os"
	"strings"

progrium

render-template() {
	declare filename="$1"; shift
	local script k v
	for var in "$@"; do
		IFS='=' read k v <<< "$var"
		script="s/\$\$$k/${var##${k}=}/;$script"
	done
	cat "$filename" | sed "$script"
}

jsjolund

-------------------------------------------------------------------------------
-- Configuration for using Xmonad inside Xfce, KDE and standalone.
--
-- Xfce: It is recommended to disable/remove xfwm4 and xfdesktop.

-- KDE: Plasma works with xmonad, except
-- 1. Mouse cursor cannot focus on empty monitors.
-- 2. Panel start-menu search field cannot receive input.
-------------------------------------------------------------------------------

wincent

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

andrewwebber

#cloud-config

coreos:
  units:
    - name: sshd.socket
      command: restart
      content: |
        [Socket]
        ListenStream=2222
        Accept=yes

brigand

These macros are designed to provide a literal notation for [immutable-js][1] using [sweetjs][2].

The most interesting being the Map literal

var map = im{"foo": "bar", "baz": "quux"};

This compiles to the 2d array version of Immutable.Map.

nmerouze

package main

import (
	"encoding/json"
	"log"
	"net/http"
	"reflect"
	"time"

	"github.com/gorilla/context"

jetsonhacks

#!/bin/sh
# Run two video webcam feeds in two different windows
# Script assumes that:
# Microsoft LifeCam Studio is video0
# Logitech c920 is video1
# Both cameras run max 1920x1080 MJPG, but two have both on a USB bus they can run @ 1280x720 max
# MS is made a little smaller
# text overlay and clockoverlay may be added to the pipeline, but render poorly
VELEM="v4l2src device=/dev/video0 do-timestamp=true"
VCAPS="image/jpeg, width=640, height=480, framerate=30/1"