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Android mock location on device?
How can I mock my location on a physical device (Nexus One)? I know you can do this with the emulator in the Emulator Control panel, but this doesn't work for a physical device.
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Rails 3: Get Random Record
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Thing.first(:order => "RANDOM()") # For MySQL :order => "RAND()", - thanx, @DanSingerman
# Rails 3
Thing.order("RANDOM()").first
or
Thing.first(:offset => rand(Thing.count))
# Rails 3
Thing.offset(rand(Thing.count)).first
Actually, in Rails 3 all example...
How does JavaScript handle AJAX responses in the background?
... sure. I have a for loop, wherein I send out lots of 'ajax' requests. In my handler (for each request--returned in arbitrary order) I run some code that may take some time. Good to know this should definitely work.
– iPadDeveloper2011
Dec 6 '12 at 6:06
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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
I'm using the PostgreSQL database for my Ruby on Rails application (on Mac OS X 10.9).
15 Answers
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How to write iOS app purely in C
...s I do not know the @encode sequence of 'CGRect' off
// of the top of my head. As a result, there is a chance that the rect
// parameter of the method may not get passed properly.
class_addMethod(ViewClass, sel_getUid("drawRect:"), (IMP) View_drawRect, "v@:");
// And again, we tel...
How should I escape strings in JSON?
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I'm not sure how widely it's supported, but in my experience a call to JSON.stringify() did the job.
– L S
Jan 30 '14 at 19:15
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Is there a performance difference between i++ and ++i in C?
...t didn't optimize the i++ case (in fact, the compiler that brought this to my attention professionally) was the Software Toolworks C80 compiler by Walt Bilofsky. That compiler was for Intel 8080 CP/M systems. It's safe to say that any compiler which does not include this optimization is not one me...
Which is best way to define constants in android, either static class, interface or xml resource?
...at said, I personally use resources for values that I might need to use in my XML or java code. On the other hand, I typically use static final constants for values that will only be used by my java code and are specific to my implementation.
Also note that it is possible to load XML resources at r...
All possible array initialization syntaxes
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Not exactly C# "syntax", but let's not forget (my personal favorite) Array.CreateInstance(typeof(int), 3)!
– Jeffrey L Whitledge
Apr 15 '11 at 15:38
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SOAP or REST for Web Services? [closed]
...ou want to get an object, SOAP is way quicker and easier to implement. See my post here for more info: stackoverflow.com/questions/3285704/…
– Josh M.
Nov 4 '10 at 18:32
40
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