Pretz

+ (NSDateFormatter *)dateFormatter {
    return [[ISO8601DateFormatter alloc] init];
}

+ (NSValueTransformer *)jsonDateValueTransformer {
    return [MTLValueTransformer reversibleTransformerWithForwardBlock:^(NSString *str) {
        return [self.dateFormatter dateFromString:str];
    } reverseBlock:^(NSDate *date) {
        return [self.dateFormatter stringFromDate:date];
    }];

Pretz

import winreg
import itertools
import binascii
import array

def hexlify(_bytes, reverse=True):
    a = array.array('b', _bytes)
    if swap:
        a.reverse()
    return binascii.hexlify(a.tobytes()).decode('utf-8')

Pretz

#define STATIC_CONST(name) static NSString * const name = @#name;

STATIC_CONST(LearningNavRestorationIdentifier)
STATIC_CONST(ProfileNavRestorationIdentifier)
STATIC_CONST(ReservationsNavRestorationIdentifier)

#undef STATIC_CONST

// Becomes:

Pretz

#pragma mark - State Restoration

- (NSString *)modelIdentifierForElementAtIndexPath:(NSIndexPath *)idx inView:(UIView *)view {
    if (idx && self.fetchedResultsController) {
        NSManagedObject *object = [self.fetchedResultsController objectAtIndexPath:idx];
        return object.objectID.URIRepresentation.absoluteString;
    }
    return nil;
}

Pretz

// Playground - noun: a place where people can play

import Foundation

struct ResultType<T: NSObject> {
    var _value: [T]

    var value: T {
    get {
        return _value[0]

Pretz

#/bin/bash
install() {
if [ -f "$SQLITEDBPATH" ]; then
cp -n "$SQLITEDBPATH" "$SQLITEDBPATH.charlesbackup"
sqlite3 "$SQLITEDBPATH" <<EOF
INSERT INTO "tsettings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

Pretz

// Playground - noun: a place where people can play

import Foundation

extension NSTimeInterval {
    var seconds: NSTimeInterval {
        return self
    }
    
    var minutes: NSTimeInterval {

Pretz

I went searching for a UI component that shows a single month at a time and allows switching between months. I decided to roll my own, but here's the projects I looked at, ordered by github stars:

1. https://github.com/devinross/tapkulibrary (3492)
2. https://github.com/square/objc-TimesSquare (1366)
3. https://github.com/klazuka/Kal (1259)
4. https://github.com/min/MNCalendarView (317)
5. https://github.com/PeteC/DSLCalendarView (290)
6. https://github.com/MosheBerman/MBCalendarKit (287)
7. https://github.com/phaibin/Kal (64)

Pretz

func retinaWrap(view: UIView, scaleFactor: CGFloat = 2.0) -> UIView {
    let scaleTransform = CGAffineTransformMakeScale(scaleFactor, scaleFactor)
    let scaledView = UIView(frame: CGRectMake(0, 0, view.bounds.width * scaleFactor, view.bounds.height * scaleFactor))
    view.transform = scaleTransform
    view.center = CGPoint(x: scaledView.frame.width / 2, y: scaledView.frame.height / 2)
    scaledView.addSubview(view)
    return scaledView
}

Pretz

// Playground - noun: a place where people can play

import UIKit

struct ApiResponse {
    let success: Bool
    let values: [[NSObject: AnyObject]]
}

class BaseModel: NSObject {