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How to delete and replace last line in the terminal using bash?
...e return with \r
seq 1 1000000 | while read i; do echo -en "\r$i"; done
from man echo:
-n do not output the trailing newline
-e enable interpretation of backslash escapes
\r carriage return
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How to convert std::string to LPCSTR?
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Call c_str() to get a const char * (LPCSTR) from a std::string.
It's all in the name:
LPSTR - (long) pointer to string - char *
LPCSTR - (long) pointer to constant string - const char *
LPWSTR - (long) pointer to Unicode (wide) string - wchar_t *
LPCWSTR - (long) ...
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android
...he Activity is destroyed, created again and the layouts are “inflated” from the XML consuming the VM memory available for bitmaps.
Bitmaps on the previous activity layout are not properly de-allocated by the garbage collector because they have crossed references to their activity. After many ex...
JavaScript: Passing parameters to a callback function
...e callback function
//only when we have some missing value
//get this data from ajax or compute
var extraParam = "this data was missing" ;
//call the callback when we have the data
callback(extraParam);
}
// test function
callbackTester (function(k) {
tryMe("hello", "goodbye", k);
});
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When is the init() function run?
...ler.
A package will be initialised only once even if it is imported from multiple packages.
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How to atomically delete keys matching a pattern using Redis
...ata to keys prefix:3:1 and prefix:3:2. Then you can safely take old values from prefix:2:1 and prefix:2:2 and purge old keys.
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Fade/dissolve when changing UIImageView's image
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Edit: there is a better solution from @algal below.
Another way to do this is by using predefined CAAnimation transitions:
CATransition *transition = [CATransition animation];
transition.duration = 0.25;
transition.timingFunction = [CAMediaTimingFunction f...
Catch an exception thrown by an async void method
Using the async CTP from Microsoft for .NET,
is it possible to catch an exception thrown by an async method in the calling method?
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Make sure only a single instance of a program is running
...tform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is available singleton.py. Please file bugs here.
You can install tend using one of the f...
Is it possible to run JavaFX applications on iOS, Android or Windows Phone 8?
...es
JavaFXPorts SDK for android, iOS and embedded devices can be downloaded from here
JavaFXPorts project is still thriving and it is easier than ever to run JavaFX on mobile devices, all thanks to the IDE plugins that is built on top of these SDKs and gets you started in a few minutes without the ha...