kobelb

func timerTick () {
  if let newAssetWriter = self.createAssetWriterAndInputs() {
      dispatch_async(_writingQueue) {
          self.newAssetWriterAndInputs = newAssetWriter;
      }
  }
}

tellyworth

On OSX Yosemite and above, in a terminal window:

1. Switch to the root user.
  
  $ sudo su -
  
2. Create a Dummynet pipe that represents a slow, unreliable network:

  # dnctl pipe 1 config bw 10Kbit/s delay 300 plr 0.1 noerror

paulirish

Option 1: Command-line download extension as zip and extract

extension_id=jifpbeccnghkjeaalbbjmodiffmgedin   # change this ID
curl -L -o "$extension_id.zip" "https://clients2.google.com/service/update2/crx?response=redirect&os=mac&arch=x86-64&nacl_arch=x86-64&prod=chromecrx&prodchannel=stable&prodversion=44.0.2403.130&x=id%3D$extension_id%26uc" 
unzip -d "$extension_id-source" "$extension_id.zip"

Thx to crxviewer for the magic download URL.

marchinram

import UIKit

extension UIImage {
    subscript (x: Int, y: Int) -> UIColor? {
        guard x >= 0 && x < Int(size.width) && y >= 0 && y < Int(size.height),
            let cgImage = cgImage,
            let provider = cgImage.dataProvider,
            let providerData = provider.data,
            let data = CFDataGetBytePtr(providerData) else {
            return nil

pyrtsa

// What people often ask DefaultDict for, could be done with just one
// extension method for Optional.

extension Optional {
    mutating func mappend(z: Wrapped, _ f: (Wrapped, Wrapped) -> Wrapped) {
        self = map {x in f(x, z)} ?? z
    }
}

// --- Examples ------------------------------------------------------------

pyrtsa

struct QuotedString : Printable {
    var string: String
    init(_ string: String) {
        self.string = string
    }
    var description: String {
        let backslash: UnicodeScalar = "\\"
        let quote: UnicodeScalar = "\""
        let hex: [UnicodeScalar] = ["0", "1", "2", "3", "4", "5", "6", "7",
                                    "8", "9", "a", "b", "c", "d", "e", "f"]

pyrtsa

import UIKit

struct Color {
    let color: UIColor
    init(r: CGFloat = 0.0,
         g: CGFloat = 0.0,
         b: CGFloat = 0.0,
         a: CGFloat = 1.0)
    {
        color = UIColor(red: r, green: g, blue: b, alpha: a)

mattt

struct Regex {
    let pattern: String
    let options: NSRegularExpressionOptions!

    private var matcher: NSRegularExpression {
        return NSRegularExpression(pattern: self.pattern, options: self.options, error: nil)
    }

    init(pattern: String, options: NSRegularExpressionOptions = nil) {
        self.pattern = pattern

johankool

#
# Set the build number to the current git commit count.
# If we're using the Dev scheme, then we'll suffix the build
# number with the current branch name, to make collisions
# far less likely across feature branches.
# Based on: http://w3facility.info/question/how-do-i-force-xcode-to-rebuild-the-info-plist-file-in-my-project-every-time-i-build-the-project/
#
git=`sh /etc/profile; which git`
appBuild=`"$git" rev-list --all |wc -l`
if [ $CONFIGURATION = "Debug" ]; then

marksands

- (NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewRowAction *moreAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"More" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath){
        // maybe show an action sheet with more options
        [self.tableView setEditing:NO];
    }];
    moreAction.backgroundColor = [UIColor lightGrayColor];
    
    UITableViewRowAction *blurAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Blur" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath){
        [self.tableView setEditing:NO];
    }];