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Where is array's length property defined?
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84
Note also that ArrayList.size() provides the number of object actually stored in the array whereas myArray.length ([]) provides the "capaci...
Using curl to upload POST data with files
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@user956424 In the example, set "image" to the name of your field. And some languages, such as PHP, will build an array if you specify something like "image[]" for the inputs that need to be grouped together.
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Redefining NULL
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The C standard does not require null pointers to be at the machine's address zero. HOWEVER, cas...
Average of 3 long integers
...(new int128_t(0, z));
t = t.divideby3();
long average = t.L;
In C/C++ on 64-bit platforms it's much easier with __int128
int64_t average = ((__int128)x + y + z)/3;
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Can I call an overloaded constructor from another constructor of the same class in C#?
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84
If you mean if you can do ctor chaining in C#, the answer is yes. The question has already been...
Java equivalent of unsigned long long?
In C++, I enjoyed having access to a 64 bit unsigned integer, via unsigned long long int , or via uint64_t . Now, in Java longs are 64 bits, I know. However, they are signed.
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Fetch frame count with ffmpeg
...no LF) you can parse the text for the current time mark it is at:
frame= 84 fps= 18 q=10.0 size= 5kB time=1.68 bitrate= 26.1kbits/s
frame= 90 fps= 17 q=10.0 size= 6kB time=1.92 bitrate= 23.8kbits/s
frame= 94 fps= 16 q=10.0 size= 232kB time=2.08 bitrate= 913.0kbits/s ...
In MVVM should the ViewModel or Model implement INotifyPropertyChanged?
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What do you do if a property changes in the model? You need to get it to the view-model somehow. Honest question, I'm dealing with this con...
How do I get the row count of a pandas DataFrame?
...eturn non-NaN counts for each column:
df.count()
A 5
B 3
dtype: int64
For Series, use Series.count to similar effect:
s.count()
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Group-wise Row Count: GroupBy.size
For DataFrames, use DataFrameGroupBy.size to count the number of rows per group.
df.groupby('A').size()
A
a 2
b ...
What is an .axd file?
... that render resources to the client WebResource.axd?d=SbXSD3uTnhYsK4gMD8fL84_mH.... .css and .js files are static
– Magnus
May 4 '11 at 7:23
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