flexaddicted

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

  [NSClassFromString(@"WebView") _enableRemoteInspector];

  // or [NSClassFromString(@"WebView") performSelector:@selector(_enableRemoteInspector)];
  // if the compiler will complain
}

flexaddicted

UIImage* image = [UIImage imageNamed:@"my_image"];
[self.myButton setImage:image forState:UIControlStateNormal];
    
[self.myButton setTitle:@"My button" forState:UIControlStateNormal];

flexaddicted

UITapGestureRecognizer* tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageViewTapped:)];
tapGestureRecognizer.numberOfTapsRequired = 1;

self.myButton.imageView.userInteractionEnabled = YES;    
[self.myButton.imageView addGestureRecognizer:tapGestureRecognizer];

flexaddicted

[[tapGestureRecognizer view] superview];

flexaddicted

_.map([1, 2, 3], function(num) { return num * 3; });

flexaddicted

function(num) { return num * 3; }

flexaddicted

// NSArray+FAPMap.h
typedef id(^MapBlock)(id item);

@interface NSArray (FAPMap)

- (NSArray*)fap_map:(MapBlock)mapBlock;

@end

// NSArray+FAPMap.m

flexaddicted

// how to use NSArray+FAPMap category
NSArray* toMapArray = @[@1, @2, @3];
NSArray* mappedArray = [toMapArray fap_map:^id(id item) {
    NSNumber* itemAsNumber = (NSNumber*)item;
    int resultValue = [itemAsNumber integerValue] * 3;
    return @(resultValue);
}];

flexaddicted

- (void)downloadData {
    NSURL *url = [NSURL URLWithString:@"someurlhere"];
    NetworkFetcher *networkFetcher = [[NetworkFetcher alloc] initWithURL:url];
    [networkFetcher startWithCompletionHandler:^(NSData *data){
        NSLog(@"Request URL %@ finished", networkFetcher.url);
        _fetchedData = data;
    }];
}

flexaddicted

// in NetworkFetcher class
- (void)requestCompleted {
    if(self.completionHandler) {
        // invoke the block with data
        self.completionHandler(self.downloadedData);
    }

    // break the retain cycle
    self.completionHandler = nil;
}