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UICollectionView's cellForItemAtIndexPath is not being called
...ht was too big.
[self.myCollectionViewFlowLayout setItemSize:CGSizeMake(320, 548)];
If I change the height to 410, it will execute cellForItemAtIndexPath.
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How to create a numpy array of all True or all False?
...mpy.zeros((2, 2))
Since True and False are represented in Python as 1 and 0, respectively, we have only to specify this array should be boolean using the optional dtype parameter and we are done.
numpy.ones((2, 2), dtype=bool)
returns:
array([[ True, True],
[ True, True]], dtype=bool)
...
Calculating days between two dates with Java
...
UPDATE: The original answer from 2013 is now outdated because some of the classes have been replaced. The new way of doing this is using the new java.time classes.
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd MM yyyy");
String inputString1 = "23 0...
How to run a hello.js file in Node.js on windows?
...('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, "127.0.0.1");
console.log('Server running at http://127.0.0.1:1337/');
Save the file
Start -> Run... -> cmd
c:
C:>node h...
pandas GroupBy columns with NaN (missing) values
...ore doing the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fillna(-1).groupby('b').sum()
Out[12]:
a
b
-1 2
4 1
6 3
That said, this feels pretty awful hack... perhaps there should be an option to include NaN in groupby (see this g...
Calculating Distance between two Latitude and Longitude GeoCoordinates
...
Nigel SampsonNigel Sampson
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Prevent user from seeing previously visited secured page after logout
...; // HTTP 1.1.
response.setHeader("Pragma", "no-cache"); // HTTP 1.0.
response.setDateHeader("Expires", 0); // Proxies.
chain.doFilter(req, res);
}
// ...
}
Map this Filter on an url-pattern of interest, for example *.jsp.
@WebFilter("*.jsp")
Or if you want to ...
Get Output From the logging Module in IPython Notebook
... This does not work any more. Not with the Jupyter Notebook 5.3.0
– Wesam
Apr 27 '18 at 5:17
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C# Iterating through an enum? (Indexing a System.Array)
...
204
Array values = Enum.GetValues(typeof(myEnum));
foreach( MyEnum val in values )
{
Console.Wr...
Remove the complete styling of an HTML button/submit
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edited Nov 5 '18 at 15:50
answered Mar 17 '10 at 12:13
a ...