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How to use WPF Background Worker
... useful)
a) subscribe to ProgressChanged event and use ReportProgress(Int32) in DoWork
b) set worker.WorkerReportsProgress = true; (credits to @zagy)
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Difference between __str__ and __repr__?
What is the difference between __str__ and __repr__ in Python?
23 Answers
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Is there a max array length limit in C++?
...re support in the integer math unit. On every x86 OS I've used, size_t is 32-bits for a 32-bit OS and 64-bits for a 64-bit OS.
– Mr Fooz
Dec 18 '09 at 22:36
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What is the difference between class and instance attributes?
... Alex CoventryAlex Coventry
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add created_at and updated_at fields to mongoose schemas
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– John Culviner
Apr 28 '17 at 20:32
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HTML5 Canvas Resize (Downscale) Image High Quality?
...h);
var tByteBuffer = imgRes.data;
// convert float32 array into a UInt8Clamped Array
var pxIndex = 0; //
for (sIndex = 0, tIndex = 0; pxIndex < tw * th; sIndex += 3, tIndex += 4, pxIndex++) {
tByteBuffer[tIndex] = Math.ceil(tBuffer[sIndex]);
tByteBuffer[tIndex +...
Can't pickle when using multiprocessing Pool.map()
...r program to allow such methods to be pickled, registering it with the copy_reg standard library method.
For example, Steven Bethard's contribution to this thread (towards the end of the thread) shows one perfectly workable approach to allow method pickling/unpickling via copy_reg.
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Quick and easy file dialog in Python?
...7:47
jfs
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answered Jan 2 '13 at 8:58
tomvodito...
Which is faster : if (bool) or if(int)?
...s an 8-bit value, and your system ABI requires it to "promote" small (< 32-bit) integer arguments to 32-bit when pushing them onto the call stack. So to compare a bool, the compiler generates code to isolate the least significant byte of the 32-bit argument that g receives, and compares it with c...
Performance of Arrays vs. Lists
...now exact count of cells needed
If data saved in array < 85000 b (85000/32 = 2656 elements for integer data)
If needed high Random Access speed
List need to use:
If needed to add cells to the end of list (often)
If needed to add cells in the beginning/middle of the list (NOT OFTEN)
If data sav...