cdzombak

let nilString: String? = nil
let aString: String? = "a non-nil string"

print (nilString ?? "the string is nil")
print (aString ?? "the string is nil")

// if you don't want to use `??` …
// (inspired by Scala's Option's `getOrElse`)

extension Optional {

cdzombak

tell application id "OOut"
	
	try
		set doc_name to name of front document
	on error
		activate
		display alert "No Document Open"
		return
	end try
	

cdzombak

var m=document.getElementsByTagName('meta');

for(var i=0; i<m.length; i++) {
    if (m[i].name == 'viewport') {
        if (m[i].content.indexOf('user-scalable=0') != -1 || m[i].content.indexOf('user-scalable=no') != -1) {
            m[i].content = 'width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=4.0, user-scalable=1';
            alert('Found & fixed.');
        }
    }
}

cdzombak

//
//  CDZObjectWatcher.h
//
//  Created by Chris Dzombak.
//  Copyright (c) 2015 Chris Dzombak. All rights reserved.
//

@import Foundation;
@import CoreData;

cdzombak

// in -loadView or similar…
    self.completeButtonBottomConstraint = [NSLayoutConstraint constraintWithItem:self.completeButton attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:v attribute:NSLayoutAttributeBottom multiplier:1.0 constant:-1.0*IDPCompleteButtonBottomSpacing];

// in -viewWillAppear:…
    [NSNotificationCenter.defaultCenter addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
    [NSNotificationCenter.defaultCenter addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];

- (void)keyboardWillShow:(NSNotification *)note {
    [self updateBottomConstraintFromNotification:note];
}

cdzombak

• throws in Swift 2 is just another way to return from a function/method. Because of its propagation semantics, it's not really "exceptions", which is probably a good change.
• But unlike an Either or Result return type, throws in Swift 2 cannot communicate type information.
• This sucks; and we will realize it sucks when we keep having to refer to documentation every time we call a function that throws to see what sort of errors we may have to handle. This is part of the problem that types solve; they are documentation, with compiler-enforced guarantees.
• Arguments based on the clunkiness of pattern-matching on a Result type vs. the new syntax are not valid. Had the Swift team chosen to introduce a blessed stdlib Result type, they could have introduced elegant syntax to handle it without requiring boilerplate; remember, everything related to throws is new syntax.
• Yes, this would make versioning harder. Changing the types of errors you return changes the contract of an API, if you care abou

cdzombak

property droppedContext : "Dropped"

tell application "OmniFocus"
	tell front document
		try
			set theDroppedContextID to id of item 1 of (complete droppedContext as context)
			set theDroppedContext to first flattened context whose id is theDroppedContextID
		on error
			display alert "No context found whose name contains “" & droppedContext & "”"
			return

cdzombak

@protocol NSArray

+ (instancetype)array;
+ (instancetype)arrayWithObject:(id)anObject;
+ (instancetype)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt;
+ (instancetype)arrayWithObjects:(id)firstObj, ... NS_REQUIRES_NIL_TERMINATION;
+ (instancetype)arrayWithArray:(NSArray *)array;

- (instancetype)initWithObjects:(id)firstObj, ... NS_REQUIRES_NIL_TERMINATION;
- (instancetype)initWithArray:(NSArray *)array;

cdzombak

    NYTCompletionBlock completion = ^(id result) {};
    id completionMock = [OCMockObject partialMockForObject:completion];
    [[[completionMock expect] copy] andReturn:completion];

    id sut = [[NYTXXX alloc] initWithCompletion:completionMock];
#pragma unused (sut)

    [completionMock verify];

cdzombak

//
//  CDZWeak.h
//  https://gist.github.com/cdzombak/844e887ed4bdb933a905
//
//  Created by Chris Dzombak on 3/22/15.
//  Copyright (c) 2015 Chris Dzombak. All rights reserved.
//

#ifndef CDZWeak_h
#define CDZWeak_h