mattt

alfred://customsearch/Search%20WWDC%20Sessions/wwdc/utf8/noplus/http://asciiwwdc.com/search?q={query}

mattt

Greetings, NSHipsters!

As we prepare to increment our NSDateComponents -year by 1, it's time once again for NSHipster end-of-the-year Reader Submissions! Last year, we got some mind-blowing tips and tricks. With the release of iOS 7 & Mavericks, and a year's worth of new developments in the Objective-C ecosystem, there should be a ton of new stuff to write up for this year.

Submit your favorite piece of Objective-C trivia, framework arcana, hidden Xcode feature, or anything else you think is cool, and you could have it featured in the year-end blowout article. Just comment on this gist below!

Here are a few examples of the kind of things I'd like to see:

• Using NSStringFromSelector(@selector()) as a safer way to do KVC / KVO / NSCoding.
• Panic's [rather surprising discovery about the internals of the Lightning Digital AV Adapter](http://www.panic.com/blog/the-lightning-di

mattt

@import MobileCoreServices;

static CFStringRef UTTypeForImageData(NSData *data) {
    const unsigned char * bytes = [data bytes];

    if (data.length >= 8) {
        if (bytes[0] == 0x89 && bytes[1] == 0x50 && bytes[2] == 0x4E && bytes[3] == 0x47 && bytes[4] == 0x0D && bytes[5] == 0x0A && bytes[6] == 0x1A && bytes[7] == 0x0A) {
            return kUTTypePNG;
        }
    }

UnderscoreDavidSmith

Podcasts with RSS Feed

• Freakonomics Radio
• In Our Time
• IRL Talk
• Planet Money
• Stuff you Missed in History Class
• Technical Difficulties
• The Incomparable
• This American Life

mattt

require 'open-uri'
require 'nokogiri'

year = 2014
doc = Nokogiri::HTML(open("https://developer.apple.com/videos/wwdc/#{year}/"))

doc.search("p.download").each do |download|
  href = download.at("a").attr('href')
  uri = URI(href)
  uri.path = uri.path.split('/')[0...-1].join('/') + '/'

kongtomorrow

/* The Y combinator in Swift!

For a discussion of what the heck this is all about, see http://www.ece.uc.edu/~franco/C511/html/Scheme/ycomb.html

The nifty thing is that it allows us to implement recursion without the ability for a function to refer to itself from within its own definition. 

Note how we manage a recursive definition of factorial without any function referring to its own name.

Thanks to @eridius for help with the SelfToUnderlying<T> type.
*/

mattt

struct もじれつ: Printable {
    let description: String

    init(string: String) {
        var mutableString = NSMutableString(string: string) as CFMutableString
        if CFStringTransform(mutableString, nil, kCFStringTransformLatinHiragana, 0) == 1 {
            self.description = mutableString as NSString
        } else {
            self.description = string
        }

davatron5000

struct もじれつ: Printable {
    let description: String

    init(string: String) {
        var mutableString = NSMutableString(string: string) as CFMutableString
        if CFStringTransform(mutableString, nil, kCFStringTransformLatinHiragana, 0) == 1 {
            self.description = mutableString as NSString
        } else {
            self.description = string
        }

mattt

ASCIIwwdc Viewing Statistics

June 1, 2014 – September 15, 2014

Percentage of total visits for sessions among the top 100 pages on ASCIIwwdc.

Initial Takeaways

• Vast majority of views for 2014 sessions, as might be expected
• Top 6 most-watched session all involve view controllers & Interface Builder (accounting for 1/4 of total traffic)
• "What's New in X" sessions are extremely popular

mattt

Season's Greetings, NSHipsters!

As the year winds down, and we take a moment to reflect on our experiences over the past months, one thing is clear: 2014 has been an incredible year professionally for Apple developers. So much has happened in such a short timespan, and yet it's hard to remember our relationship to Objective-C before Swift, or what APIs could have captivated our imagination as much as iOS 8 or WatchKit.

It's an NSHipster tradition to ask you, dear readers, to send in your favorite tips and tricks from the past year for publication over the New Year's holiday. This year, with the deluge of new developments—both from Cupertino and the community at large—there should be no shortage of interesting tidbits to share.

Submit your favorite piece of Swift or Objective-C trivia, framework arcana, hidden Xcode feature, or anything else you think is cool, and you could have it featured in the year-end blowout article. Just comment on this gist below!

If you're wondering about what to post, look to