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How do I get the day of the week with Foundation?

...ter alloc] init] ; [dateFormatter setDateFormat:@"EEEE"]; NSDate *now = [[NSDate alloc] init]; NSString *dateString = [format stringFromDate:now]; NSString *theDate = [dateFormat stringFromDate:now]; NSString *theTime = [timeFormat stringFromDate:now]; NSString *week = [dat...
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Does Foreign Key improve query performance?

...pretty much useless because it doesn't answer the question. It's great to know that foreign keys are not intended to have a (positive) effect on performance, but the question was concerning reality, not intentions. – John Mar 15 '17 at 16:04 ...
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What does the exclamation mark do before the function?

...ation. You would need an invocation, foo(), to actually run the function. Now, when we add the seemingly innocuous exclamation mark: !function foo() {} it turns it into an expression. It is now a function expression. The ! alone doesn't invoke the function, of course, but we can now put () at the ...
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How to install the current version of Go in Ubuntu Precise

... This is annoying now that you have to bootstrap 1.5+ with a 1.4+ build. – jocull Jan 2 '16 at 17:17 add a comment ...
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Synchronizing a local Git repository with a remote one

... @SergiySokolenko that's what we all say, but deep down we know SO has become more convenient that man pages :-P – Marcello Romani Dec 31 '18 at 14:50 ...
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Does Git publicly expose my e-mail address?

...ere in the repo except on the PR web page). If the PR was merged, I don't know any way to reverse the commits (if it is still open you can rebase and force push). – D. A. Mar 22 at 17:44 ...
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Error in finding last used cell in Excel with VBA

... It is highly unreliable. Try this experiment. Type something in cell A5. Now when you calculate the last row with any of the methods given below, it will give you 5. Now color the cell A10 red. If you now use the any of the below code, you will still get 5. If you use Usedrange.Rows.Count what do ...
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How do I detect when someone shakes an iPhone?

..., just that it was waved vigorously about for a split second. Does anyone know how to detect this? 16 Answers ...
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Importing a GitHub project into Eclipse

... As mentioned in Alain Beauvois's answer, and now (Q4 2013) better explained in Eclipse for GitHub EGit 3.x manual (section "Starting from existing Git Repositories") Eclipse with GitHub EGit tutorial Copy the URL from GitHub and select in Eclipse from the menu t...
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file_put_contents - failed to open stream: Permission denied

... There is now a troubleshooting checklist for this kind of problems : stackoverflow.com/questions/36577020/… – Vic Seedoubleyew Aug 20 '16 at 9:26 ...