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Assigning variables with dynamic names in Java
...However, this only works for variables that are class members (i.e. static and instance fields). It doesn't work for local variables. See @fyr's "quick and dirty" example.
However doing this kind of thing unnecessarily in Java is a bad idea. It is inefficient, the code is more complicated, and s...
Reactjs convert html string to jsx
I'm having trouble dealing with facebook's ReactJS. Whenever I do ajax and want to display an html data, ReactJS displays it as text. (See figure below)
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How do I catch an Ajax query post error?
I would like to catch the error and show the appropriate message if the Ajax request fails.
8 Answers
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reading from app.config file
I am trying to read StartingMonthColumn and CategoryHeadingColumn
from the below app.config file using the code
8 Answers
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Size of Matrix OpenCV
...ou please tell me how to obtain the size of a matrix in OpenCV?. I googled and I am still searching, but if any of you know the answer, please help me.
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Any tools to generate an XSD schema from an XML instance document? [closed]
I am looking for a tool which will take an XML instance document and output a corresponding XSD schema.
10 Answers
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How to use DISTINCT and ORDER BY in same SELECT statement?
...he DISTINCT. To do this, you need to use an aggregate function to sort on, and use a GROUP BY to make the DISTINCT work.
Try something like this:
SELECT DISTINCT Category, MAX(CreationDate)
FROM MonitoringJob
GROUP BY Category
ORDER BY MAX(CreationDate) DESC, Category
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How to find out if a Python object is a string?
...a subclass of a string type:
isinstance(o, basestring)
because both str and unicode are subclasses of basestring.
To check if the type of o is exactly str:
type(o) is str
To check if o is an instance of str or any subclass of str:
isinstance(o, str)
The above also work for Unicode strings ...
date format yyyy-MM-ddTHH:mm:ssZ
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The accepted answer says to use format specifier "s" and append a Z on the end for UTC dates. That's all good and fine if you don't need the milliseconds, but if you want the milliseconds you have to use "o" like this answer shows. With "o", the milliseconds show up by defaul...
PHP session lost after redirect
...nt script using exit(); (Others have also suggested session_write_close(); and session_regenerate_id(true), you can try those as well, but I'd use exit();)
Make sure cookies are enabled in the browser you are using to test it on.
Ensure register_globals is off, you can check this on the php.ini file...