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How to recognize USB devices in Virtualbox running on a Linux host? [closed]
...ct the guest from the Virtualbox home (I'm using a Windows XP 3 guest), choose Settings -> USB -> Add filter from device, no devices is listed, even if an USB pen is attached and recognized by my Lubuntu 13.10. If i run the guest, nothing happens if I attach the device and, as above, no USB device i...
JavaScript: What are .extend and .prototype used for?
..., Math, and even your own custom ones.
Date.prototype.lol = function() {
alert('hi');
};
( new Date ).lol() // alert message
In the snippet above, I define a method for all Date objects ( already existing ones and all new ones ).
extend is usually a high level function that copies the prototy...
What does the ??!??! operator do in C?
...orHasOccurred() && HandleError(); That is, if you're used to shell scripting. :)
– Yam Marcovic
Oct 24 '11 at 15:01
19
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How do I parse XML in Python?
...many rows in a database that contains XML and I'm trying to write a Python script to count instances of a particular node attribute.
...
How does delete[] know it's an array?
...lly, using delete[] to delete something created with new is exploitable. taossa.com/index.php/2007/01/03/…
– Rodrigo
Apr 24 '09 at 13:20
23
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How to simulate Android killing my process
Android will kill a process if it is in the background and the OS decides it needs the resources (RAM, CPU, etc.). I need to be able to simulate this behaviour during testing so that I can ensure that my application is behaving correctly. I want to be able to do this in an automated way so that I ca...
Programmatically obtain the Android API level of a device?
...
What you need: http://developer.android.com/reference/android/os/Build.VERSION_CODES.html
SDK_INT value Build.VERSION_CODES Human Version Name
1 BASE Android 1.0 (no codename)
2 BASE_1_1 ...
Objective-C : BOOL vs bool
...
From the definition in objc.h:
#if (TARGET_OS_IPHONE && __LP64__) || TARGET_OS_WATCH
typedef bool BOOL;
#else
typedef signed char BOOL;
// BOOL is explicitly signed so @encode(BOOL) == "c" rather than "C"
// even if -funsigned-char is used.
#endif
#define...
What is the difference between a strongly typed language and a statically typed language?
...h compiled twice (JIT) and both do some type analysis. A language like Javascript running in .NET vm might be more Typesafe because of the VM.
– Adam Gent
Apr 24 '10 at 21:06
2
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Programmatically saving image to Django ImageField
... is a URL to an image
# self.photo is the ImageField
self.photo.save(
os.path.basename(self.url),
File(open(result[0], 'rb'))
)
self.save()
That's a bit confusing because it's pulled out of my model and a bit out of context, but the important parts are:
The image pulled from the we...