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List comprehension vs. lambda + filter
I happened to find myself having a basic filtering need: I have a list and I have to filter it by an attribute of the items.
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How can I view live MySQL queries?
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You can run the MySQL command SHOW FULL PROCESSLIST; to see what queries are being processed at any given time, but that probably won't achieve what you're hoping for.
The best method to get a history without having to modify every application using ...
How to write to a file, using the logging Python module?
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An example of using logging.basicConfig rather than logging.fileHandler()
logging.basicConfig(filename=logname,
filemode='a',
format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
datefmt='%H:...
Differences between C++ string == and compare()?
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This is what the standard has to say about operator==
21.4.8.2 operator==
template<class charT, class traits, class Allocator>
bool operator==(const basic_string<charT,traits,Allocator>& lhs,
const basic_str...
How do I declare a 2d array in C++ using new?
... rowCount; ++i)
a[i] = new int[colCount];
The above, for colCount= 5 and rowCount = 4, would produce the following:
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How to affect other elements when one element is hovered
...ral sibling combinator ~ for 'cube is somewhere after container in the DOM and shares a parent'
– robertc
Dec 21 '10 at 18:50
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What Java ORM do you prefer, and why? [closed]
It's a pretty open ended question. I'll be starting out a new project and am looking at different ORMs to integrate with database access.
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How to get line count of a large file cheaply in Python?
I need to get a line count of a large file (hundreds of thousands of lines) in python. What is the most efficient way both memory- and time-wise?
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python multithreading wait till all threads finished
...t1.join()
t2.join()
t3.join()
Thus the main thread will wait till t1, t2 and t3 finish execution.
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Serializing a list to JSON
...atively, other, less mainstream options are available like Utf8Json parser and Jil: These may offer superior performance, if you really need it but, you will need to install their respective packages.
If stuck using .Net Core 2.2 or earlier;
Default to using Newtonsoft JSON.Net as your first choic...