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How do I add 1 day to an NSDate?

...= [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; // now build a NSDate object for the next day NSDateComponents *offsetComponents = [[NSDateComponents alloc] init]; [offsetComponents setDay:1]; NSDate *nextDate = [gregorian dateByAddingComponents:offsetComponents toDate: [N...
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How to access component methods from “outside” in ReactJS?

...t; </div> ); } } Note: This will only work if the child component is declared as a class, as per documentation found here: https://facebook.github.io/react/docs/refs-and-the-dom.html#adding-a-ref-to-a-class-component Update 2019-04-01: Changed example to use a class ...
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How to detect if a property exists on an ExpandoObject?

...ewBag.EnableThinger) { // Do some stuff when EnableThinger is true } Now get rid of the declaration of EnableThinger. Same code compiles and runs properly. No need for reflection. Unlike ViewBag, ExpandoObject will throw if you check for null on a property that doesn't exist. In order to get ...
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Fatal error: Class 'SoapClient' not found

...installs, and still it didn't work. It took a while to figure this out but now it works. – SPRBRN Jan 12 '16 at 11:50 ...
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How to redirect to a 404 in Rails?

...self, there's no reason to; Rails has this functionality built in already. If you want to show a 404 page, create a render_404 method (or not_found as I called it) in ApplicationController like this: def not_found raise ActionController::RoutingError.new('Not Found') end Rails also handles Abs...
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Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT

... Try this: if (Build.VERSION.SDK_INT <19){ Intent intent = new Intent(); intent.setType("image/jpeg"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(Intent.createChooser(intent, getResources().g...
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I want to copy table contained from one database and insert onto another database table

... MySQL can now store table data in individual files (and the frm files are too per table). This approach would no doubt work, but with huge databases it is slow. Is there another way maybe? – Alex Kovshovik ...
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Throw HttpResponseException or return Request.CreateErrorResponse?

...r); response.Content.Headers.Expires = new DateTimeOffset(DateTime.Now.AddSeconds(300)); } return response; } ... but if your controller logic is more complicated, throwing an exception might simplify the code flow. HttpError gives you a consistent format for the response body and ...
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Remove blank attributes from an Object in Javascript

... test3 : 3, } function clean(obj) { for (var propName in obj) { if (obj[propName] === null || obj[propName] === undefined) { delete obj[propName]; } } } clean(test); If you're concerned about this property removal not running up object's proptype chain, you can also: funct...
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What does -> mean in Python function definitions?

... And the information is available as a .__annotations__ attribute. – Martijn Pieters♦ Jan 17 '13 at 13:06 9 ...