blockExample - from Shawn Welch

blockexample

// simple demo of a block

// create a new NSString variable demo storing the value hello
NSString *demo = @"Hello";

// define a block with function name helloBlock
void(^helloBlock)(NSString*) = ^(NSString *param) {
         NSLog(@"%@,%@", demo, param);
};

helloBlock(@"Block");