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What is the use of the @ symbol in PHP?

...om error handler function with set_error_handler() then it will still get called, but this custom error handler can (and should) call error_reporting() which will return 0 when the call that triggered the error was preceded by an @... ...
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How do I hide the status bar in a Swift iOS app?

... You really should implement prefersStatusBarHidden on your view controller(s): Swift 3 and later override var prefersStatusBarHidden: Bool { return true } ...
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Where is the Keytool application?

... | edited Mar 1 '17 at 10:21 Veverke 4,36911 gold badge3232 silver badges7373 bronze badges answered ...
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How to check for DLL dependency?

...metimes when I'm doing a little project I'm not careful enough and accidentally add a dependency for a DLL that I am not aware of. When I ship this program to a friend or other people, "it doesn't work" because "some DLL" is missing. This is of course because the program can find the DLL on my syst...
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How to write a cron that will run a script every day at midnight?

...2 wd day of week 0-7 (Sunday = 0 or 7) command: what you want to run all numeric values can be replaced by * which means all share | improve this answer | follow ...
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How do you mock out the file system in C# for unit testing?

... Edit: Install the NuGet package System.IO.Abstractions. This package did not exist when this answer was originally accepted. The original answer is provided for historical context below: You could do it by creating an interface: inter...
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What do I have to do to get Core Data to automatically migrate models?

...AndKeys: [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil]; NSError *error; _persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectMod...
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How to get the type of T from a member of a generic class or method?

... I actually just used typeof(Type) and it works great. – Anton Jun 26 '17 at 14:39 ...
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Run an OLS regression with Pandas Data Frame

...import statsmodels.formula.api as sm >>> df = pd.DataFrame({"A": [10,20,30,40,50], "B": [20, 30, 10, 40, 50], "C": [32, 234, 23, 23, 42523]}) >>> result = sm.ols(formula="A ~ B + C", data=df).fit() >>> print(result.params) Intercept 14.952480 B 0.401182 C ...
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Detecting a mobile browser

... @RichardLovejoy when building sites, the ipad is generally not considered a mobile. – Michael Zaporozhets Mar 28 '13 at 11:14 43 ...