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Benchmarking small code samples in C#, can this implementation be improved?
... before. That way you know .NET will already have enough memory allocated from the OS for the working set of your function.
Keep in mind that you're making a non-inlined method call for each iteration, so make sure you compare the things you're testing to an empty body. You'll also have to accept...
How do I properly clean up Excel interop objects?
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Then I suggest not using Excel from COM and save yourself all of the trouble. The Excel 2007 formats can be used without ever opening Excel, gorgeous.
– user7116
Dec 18 '09 at 17:35
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How to count the number of set bits in a 32-bit integer?
...he expense of a 'cache miss', where the CPU has to fetch some of the table from main memory. (Look up each byte separately to keep the table small.)
If you know that your bytes will be mostly 0's or mostly 1's then there are very efficient algorithms for these scenarios.
I believe a very good gener...
Finding duplicates in O(n) time and O(1) space
Input: Given an array of n elements which contains elements from 0 to n-1, with any of these numbers appearing any number of times.
...
How do I keep two side-by-side divs the same height?
...ut was a bit poor, but after checking the first link I implemented it fine from one of the examples he used. However it's really bad because you have to use an image to represent the bottom border of the columns, and it's dubious for cross-browser support. However it does work and it doesn't rely on...
Get first day of week in PHP?
...= date('m-d-Y', strtotime('+'.(6-$day).' days'));
$day contains a number from 0 to 6 representing the day of the week (Sunday = 0, Monday = 1, etc.).
$week_start contains the date for Sunday of the current week as mm-dd-yyyy.
$week_end contains the date for the Saturday of the current week as mm-d...
How do I remove an array item in TypeScript?
...property that I use as a key. If I have that key, how can I remove an item from it?
13 Answers
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MySQL: multiple tables or one table with many columns?
...e a relatively small length limit (~8000 bytes). In my problem table (data from very lengthy insurance forms, more than 100 columns) we have multiple varchar columns, all UTF8. So we easily filled the ~8000 bytes limit and got "error 139 from storage engine" all the time. So we had to split the tabl...
Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
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}
Exit from root:
# exit
Now restart docker:
$ sudo service docker restart
VERIFICATION:
Now check that adding the /etc/docker/daemon.json file allows you to resolve 'google.com' into an IP address:
$ docker run --rm busybox...
Why is “if not someobj:” better than “if someobj == None:” in Python?
...An empty string is false."
False, 0, (), [], {} and "" are all different from None, so your two code snippets are not equivalent.
Moreover, consider the following:
>>> False == 0
True
>>> False == ()
False
if object: is not an equality check. 0, (), [], None, {}, etc. are all...