Captain Danko’s JavaScript Lab — Code Smarter with Tutorials, Frameworks & Dev Insights

The title of this blog can be continued with the following line "...such that it works on both iOS7.1 and iOS8 and above". For a certain feature of my app, I needed to find out what day of the week it is for a give date and a lazy Google search lead me to the following code let today = NSDate () let calendar = NSCalendar ( calendarIdentifier : NSGregorianCalendar )! var components : Int = calendar . component (. WeekdayCalendarUnit , fromDate : today ) So I included that code in my app and first tested it on my iPhone 6 and it was working great, I was like "phew! one more thing done for my app". Unfortunately, that expression was a bit premature and I realised that when the app crashed after I deployed it to my old iPhone 5 running iOS7.1. This is the error I got, [_NSCopyOnWriteCalendarWrapper component:fromDate:]: unrecognized selector sent to instance 0x7f8452f4e490 Well as it turns out, the method that includes the fromDate parameter, ...