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Posted April 28, 2015 3:50pm by

Check date on startup

I want to make a program (using Swift and Xcode) that checks if it should download data again every 3 days. I don't know how to check the dates though -- does anybody have a good resource or can explain how to do this?

1 Answer

April 28, 2015 4:12pm

Try starting with the documentation for NSDate class reference.

https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSDate_Class/index.html

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