janodev

+(NSString*) describe:(id) object {
    
    NSMutableString *string = [NSMutableString stringWithString:@""];
    unsigned int propertyCount;
    objc_property_t *properties = class_copyPropertyList([object class], &propertyCount);
    for (unsigned int i = 0; i < propertyCount; i++)
    {
        NSString *selector = [NSString stringWithCString:property_getName(properties[i]) 
                                                encoding:NSUTF8StringEncoding] ;

janodev

/**
 * Register keyboard notifications.
 */
-(void) registerKeyboardNotifications {
    trace(@"register keyboard notifications");
    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
    [center addObserver:self 
               selector:@selector(keyboardDidShow:) 
                   name:UIKeyboardWillShowNotification object:nil];
    [center addObserver:self 

janodev

Needs["PlotLegends`"]

Plot[{1, Log[n], n, n*Log[n], n^2, n!, 2^n}, {n, 0, 40}, 
 PlotRange -> {0, 200}, PlotLabel -> "O(n) Performance types", 
 PlotLegend -> {"1", "Log[n]", "n", "n*Log[n]", "n^2", "n!", "2^n"}, 
 LegendShadow -> None, LegendBorder -> None, 
 LegendPosition -> {0.9, -0.4}]

janodev

// TEST ASYNCHRONOUS CODE
// Runs in Code Runner

#import <Foundation/Foundation.h>


@interface Test : NSObject
-(void)test1BooleanFlag;
-(void)test2BooleanFlagAndTimeLimit;
-(void)test3Semaphore;

janodev

typedef void (^loop_work_t)(void);


@interface TaxiLoop : NSObject

@property (nonatomic,assign) loop_work_t block;
@property (nonatomic,assign) NSTimeInterval interval;
@property (nonatomic,assign) dispatch_source_t timerSource;

janodev

- (dispatch_queue_t)internalQueue
{
    static dispatch_once_t onceToken;
    static dispatch_queue_t *internalQueue;
    dispatch_once(&onceToken, ^{
        internalQueue = dispatch_queue_create...
    });
    return internalQueue;
}

janodev

#import <Foundation/Foundation.h>

@interface Array : NSObject <NSFastEnumeration> {
	id __strong *_objs;
	NSUInteger _count;
}
@end

@implementation Array

janodev

// queue name
static const char* s_myqueue = "myqueue";

// return the specific queue
dispatch_queue_t my_queue() {
    static dispatch_queue_t _q;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        _q = dispatch_queue_create(s_myqueue, 0);
        // sets the key/value data for the specified dispatch queue

janodev

#import <objc/runtime.h>
#import <Foundation/Foundation.h>


@interface Person : NSObject
@property (nonatomic,strong) NSMutableDictionary *properties;
@end


@implementation Person

janodev

// Maybe a functional category on NSArray will help.

@interface NSArray(Extension)
-(NSArray*) map:(id(^)(id object))block;
@end

@implementation NSArray(Extension)
-(NSArray*) map:(id(^)(id object))block {
    NSParameterAssert(block != NULL);
    NSMutableArray *results = [[NSMutableArray alloc] initWithCapacity:[self count]];