swizzlr

List of Block Declaration Syntaxes

Throughout, let

• return_type be the type of object/primitive/etc. you'd like to return (commonly void)
• blockName be the variable name of the block you're creating
• var_type be the type object/primitive/etc. you'd like to pass as an argument (leave blank for no parameters)
• varName be the variable name of the given parameter And remember that you can create as many parameters as you'd like.

Blocks as Variables

Possibly the most common for of declaration.

jazzychad

#import "SPVMainViewController.h"

@implementation SPVMainViewController
{
    UIView *_weightView;
    UIPanGestureRecognizer *_recog;
}

- (void)viewDidLoad
{

mobilemind

# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName

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;
        }
    }

KittyGiraudel

// ----
// Sass (v3.3.4)
// Compass (v1.0.0.alpha.18)
// ----

// Overengineering mixin output
// By caching values and on-the-fly generating placeholders
// Clever and crazy. I like it so far.
// ---

razwan

$base-font-size: 	16px;
$base-line-height: 	1.5;

// this value may vary for each font
// unitless value relative to 1em
$cap-height: 		0.68;


@mixin baseline($font-size, $scale: 2) {

asmallteapot

*.strings utf16 diff=localizablestrings

axemclion

Ariya Hidayat has written an excellent article on GPU Composited CSS and how it can be used to optimize web rendering performance.

The impact of adding CSS transforms is evident in developer timline and this experiment is a way to capture that information using browser-perf. The results from this experiment clearly indicate how certain CSS properties move rendering load to the GPU, and how that that impact the overall responsiveness of the page.

Pre-requisites

1. Ensure that you have node and npm installed
2. Ensure that you have Selenium running, or can connect to Sauce Labs
3. Dowload this gist using git clone https://gist.github.com/853d34ebd776047836f3.git
4. Install other dependencies using npm install

maxgalbu

@interface NSObject (Debounce)

- (void)debounce:(SEL)action delay:(NSTimeInterval)delay;

@end

smileyborg

/**
 * The following preprocessor macros can be used to adopt the new nullability annotations and generics
 * features available in Xcode 7, while maintaining backwards compatibility with earlier versions of
 * Xcode that do not support these features.
 */

#if __has_feature(nullability)
#   define __ASSUME_NONNULL_BEGIN      NS_ASSUME_NONNULL_BEGIN
#   define __ASSUME_NONNULL_END        NS_ASSUME_NONNULL_END
#   define __NULLABLE                  nullable