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How to check iOS version?
...eck if UIPopoverController is available on the current device using NSClassFromString:
if (NSClassFromString(@"UIPopoverController")) {
// Do something
}
For weakly linked classes, it is safe to message the class, directly. Notably, this works for frameworks that aren't explicitly linked as "...
How to make a variadic macro (variable number of arguments)
...VA_ARGS__) does the job the portable way; the fmt parameter can be omitted from the definition.
– alecov
Jun 11 '12 at 20:14
4
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How do you switch pages in Xamarin.Forms?
...thin a NavigationPage you should be able to access the Navigation property from within your page
– Jason
Aug 6 '14 at 21:28
1
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What does the comma operator , do?
...on and the evaluation of the RHS (see Shafik Yaghmour's answer for a quote from the C99 standard). This is an important property of the comma operator.
– Jonathan Leffler
Jun 20 '14 at 20:47
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Execute a command line binary with Node.js
I am in the process of porting a CLI library from Ruby over to Node.js. In my code I execute several third party binaries when necessary. I am not sure how best to accomplish this in Node.
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BasicHttpBinding vs WsHttpBinding vs WebHttpBinding
...where you basically just hit a URL and get back a truckload of XML or JSON from the web service
basicHttpBinding and wsHttpBinding are two SOAP-based bindings which is quite different from REST. SOAP has the advantage of having WSDL and XSD to describe the service, its methods, and the data being p...
Where in an Eclipse workspace is the list of projects stored?
I use Eclipse with "external" projects - i.e. projects created from existing source.
6 Answers
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What is this: [Ljava.lang.Object;?
I get this when I call toString on an object I received from a function call. I know the type of the object is encoded in this string, but I don't know how to read it.
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When to use ref and when it is not necessary in C#
... it when I'm done with it". That's pretty strong, and completely different from "this object can be modified", which is always the case anytime you pass an object reference as a parameter.
– mbargiel
Sep 15 '14 at 18:55
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Allowing interaction with a UIView under another UIView
... UIView that lies under another UIView - where there are no actual objects from the top UIView on top of the button?
19 ...