staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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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.

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kyleve

/**
 Provides the ability to verify key paths at compile time.
 
 If "keyPath" does not exist, a compile-time error will be generated.
 
 Example:
    // Verifies "isFinished" exists on "operation".
    NSString *key = SQKeyPath(operation, isFinished);
 
    // Verifies "isFinished" exists on self.

odrobnik

dispatch_queue_t queue = dispatch_queue_create("PlusFlickrPhotoView Queue", DISPATCH_QUEUE_CONCURRENT);
	
dispatch_async(queue, ^{
	// force decompress of image
	UIGraphicsBeginImageContext(CGSizeMake(1, 1));
	[image drawAtPoint:CGPointZero];
	UIGraphicsEndImageContext();
	
	// set the image on main thread
	dispatch_sync(dispatch_get_main_queue(), ^{