tskaggs

Convert MOV to GIF using FFmpeg and ImageMagick

I tried a few different techniques to make a GIF via command-line and the following gives me the best control of quality and size. Once you're all setup, you'll be pumping out GIFs in no time!

Preparation

Install FFmpeg

• $ brew install ffmpeg [all your options]
  • Example: $ brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-frei0r --with-libass --with-libvo-aacenc --with-libvorbis --with-libvpx --with-opencore-amr --with-openjpeg --with-opus --with-rtmpdump --with-schroedinger --with-speex --with-theora --with-tools

Install ImageMagick

uupaa

iOS Devices

Device	CPU	GPU	Display	OpenGL
iPod touch 4	A4	PowerVR SGX535	960 x 640	2.1
iPod touch 5	A5	PowerVR SGX543MP2	1136 x 640	2.1
iPad 1	A4	PowerVR SGX535	1024 x 768	2.1
iPad 2	A5	PowerVR SGX543MP2	1024 x 768	2.1
iPad 3	A5X	PowerVR SGX543MP4	2048 x 1536	2.1
iPad 4	A6X	PowerVR SGX554MP4	2048 x 1536	2.1

nlothian

Taken from https://web.archive.org/web/20130517134339/http://bulba.sdsu.edu/jeanette/thesis/PennTags.html (since the source document now appears to be offline)

Penn Treebank II Tags

Note: This information comes from "Bracketing Guidelines for Treebank II Style Penn Treebank Project" - part of the documentation that comes with the Penn Treebank.

Contents:

Bracket Labels
Clause Level

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

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.

---

sebmarkbage

Deprecating transferPropsTo

It's a common pattern in React to wrap a component in an abstraction. The outer component exposes a simple property to do something that might have more complex implementation details.

We used to have a helper function called transferPropsTo. We no longer support this method. Instead you're expected to use a generic object helper to merge props.

render() {
 return Component(Object.assign({}, this.props, { more: 'values' }));

ShamylZakariya

func debounce( delay:NSTimeInterval, #queue:dispatch_queue_t, action: (()->()) ) -> ()->() {
	
	var lastFireTime:dispatch_time_t = 0
	let dispatchDelay = Int64(delay * Double(NSEC_PER_SEC))
	
	return {
		lastFireTime = dispatch_time(DISPATCH_TIME_NOW,0)
		dispatch_after(
			dispatch_time(
				DISPATCH_TIME_NOW,

katoy

// See http://techlife.cookpad.com/entry/2014/11/12/170041
// 
// 本来はplayground用に用意されているXCPlaygroundフレームワークのXCPShowViewを使って
// Timelineに表示することが可能ですが、現行のXcode6.1でiOS用にUIKitを使って表示した場合
// コンソールにエラーが出てしまうため使用していません。
//

import UIKit

// ビューのサイズ

marcelofabri

func sumRecursively(numbers: [Int], _ acc:Int = 0) -> Int {
    if let head = numbers.first {
        let tail = Array(dropFirst(numbers))
        return sumRecursively(tail, head + acc)
    } else {
        return acc
    }
}

let myNumbers = [1,2,3,4,5]

scottdelly

//If you have a Bridging-Header:
#import <FBSDKCoreKit/FBSDKCoreKit.h>
#import <FBSDKLoginKit/FBSDKLoginKit.h>

//In your AppDelegate:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [String: AnyObject]?) -> Bool {
    //App launch code
    FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
    //Optionally add to ensure your credentials are valid:

alexnodejs

let url = NSURL(string: "https://www.google.net")
let request = NSURLRequest(URL: url!)
let group = dispatch_group_create()

for index in 1...100 {
    dispatch_group_enter(group)
    NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in
        println("\(index) complete")
        dispatch_group_leave(group)
    }