I have to thank Nate Cook for first for his quick response and solid answer. Just for case I share his answer from another post, which title is misleading. See Nate’s answer here: https://stackoverflow.com/a/26723557/2360439 Playgrounds are sandboxed, so you won’t be able to just grab files from anywhere in your user folder. Here’s how to … Read more
Convert your attributed string into an instance of NSMutableAttributedString. The mutable attributed string has a mutableString property. According to the documentation: “The receiver tracks changes to this string and keeps its attribute mappings up to date.” So you can use the resulting mutable string to execute the replacement with replaceOccurrencesOfString:withString:options:range:.
objectForKey will return nil if a key doesn’t exist.
Use this Calendar function to compare dates in iOS 8.0+ func compare(_ date1: Date, to date2: Date, toGranularity component: Calendar.Component) -> ComparisonResult passing .day as the unit Use this function as follows: let now = Date() // “Sep 23, 2015, 10:26 AM” let olderDate = Date(timeIntervalSinceNow: -10000) // “Sep 23, 2015, 7:40 AM” var order … Read more
This problem occurs if daylight saving time starts exactly on midnight, as it was the case in Moscow in the years 1981–1984 (see for example Clock Changes in Moscow, Russia (Moskva)). This was also observed in Why does NSDateFormatter return nil date for these 4 time zones? and Why NSDateFormatter is returning null for a … Read more
To post what has already been said in comments: Dictionaries are “unordered collections”. They do not have any order at all to their key/value pairs. Period. If you want an ordered collection, use something other than a dictionary. (an array of single-item dictionaries is one way to do it.) You can also write code that … Read more
Here is some code, that converts NSExceptions to Swift 2 errors. Now you can use do { try ObjC.catchException { /* calls that might throw an NSException */ } } catch { print(“An error ocurred: \(error)”) } ObjC.h: #import <Foundation/Foundation.h> @interface ObjC : NSObject + (BOOL)catchException:(void(^)(void))tryBlock error:(__autoreleasing NSError **)error; @end ObjC.m #import “ObjC.h” @implementation ObjC … Read more