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How to calculate time in hours between two dates in iOS

...ate: (NSDate *) dateT { NSMutableString *timeLeft = [[NSMutableString alloc]init]; NSDate *today10am =[NSDate date]; NSInteger seconds = [today10am timeIntervalSinceDate:dateT]; NSInteger days = (int) (floor(seconds / (3600 * 24))); if(days) seconds -= days * 3600 * 24; ...
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Python vs Cpython

What's all this fuss about Python and CPython (Jython,IronPython) , I don't get it: 9 Answers ...
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The current SynchronizationContext may not be used as a TaskScheduler

I am using Tasks to run long running server calls in my ViewModel and the results are marshalled back on Dispatcher using TaskScheduler.FromSyncronizationContext() . For example: ...
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Should I use Python 32bit or Python 64bit

I have a win7 64bit installation. Must I use Python 64bit? What are the differences between the 32bit and 64bit Python versions anyway? Do different Python packages (such as south, django, mysqldb etc) support only 32bit/64bit? ...
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How to check if a column exists in Pandas

... To check if one or more columns all exist, you can use set.issubset, as in: if set(['A','C']).issubset(df.columns): df['sum'] = df['A'] + df['C'] As @brianpck points out in a comment, set([]) can alternatively be constructed with curly...
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Android Studio Gradle Configuration with name 'default' not found

... ./gradlew tasks --info this will show the information of all the tasks. I think this would be helpful to find out what is going wrong. – srain Jun 7 '15 at 6:01 ...
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When restoring a backup, how do I disconnect all active connections?

...ecificed DELAY, thereby giving user queries an opporunity to complete naturally. – John Sansom Jul 20 '09 at 16:02 2 ...
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Using OpenGl with C#? [closed]

... I don't think these functions are very representative, because they are all deprecated and removed from the OpenGl core profile. – Arne Apr 23 '13 at 16:55 6 ...
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How can I convert JSON to a HashMap using Gson?

...format. Casting a HashMap into JSON when making the request wasn't hard at all but the other way seems to be a little tricky. The JSON response looks like this: ...
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“Treat all warnings as errors except…” in Visual Studio

...rs" exists. It should be available in project settings without to edit manually the file. Thanks. – AFract Oct 23 '18 at 9:03 1 ...