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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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C++ project organisation (with gtest, cmake and doxygen)
...simple vector class in C++. However I would like to get in to good habits from the start rather than trying to modify my workflow later on.
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What are some (concrete) use-cases for metaclasses?
... This is true for Python 3 as well, because a class B, inheriting from A, whose metaclass is M, is also a type-of M. So, when B is evaluated, M is invoked to create it, and this effectively allows you to "work on any subclasses" (of A). Having said that, Python 3.6 introduced the much simpl...
Can you find all classes in a package using reflection?
...is method1 that uses the ClassLoader.
/**
* Scans all classes accessible from the context class loader which belong to the given package and subpackages.
*
* @param packageName The base package
* @return The classes
* @throws ClassNotFoundException
* @throws IOException
*/
private static Cla...
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...
Difference between Document-based and Key/Value-based databases?
...-value stores like redit doesn't allow you to store nested key:values? And from your description, then storing a whole database (from RDBMS) into Cassandra doesn't sound very clever cause it doesn't allow flexible query and has limited nesting depth, am I right?
– never_had_a_n...
ASP.NET MVC JsonResult Date Format
...299886.aspx#intro_to_json_topic2 for a better explanation (scroll down to "From JavaScript Literals to JSON")
One of the sore points of JSON is the
lack of a date/time literal. Many
people are surprised and disappointed
to learn this when they first
encounter JSON. The simple explanation...
Where can I get a list of Ansible pre-defined variables?
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Argh! From the FAQ:
How do I see a list of all of the ansible_ variables?
Ansible by default gathers “facts” about the machines under management, and these facts can be accessed in Playbooks and in templates. To see a list of ...
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.
...
Any way to limit border length?
...v {
position: relative;
}
/* Main div for border to extend to 50% from bottom left corner */
div:after {
content: "";
background: black;
position: absolute;
bottom: 0;
left: 0;
height: 50%;
width: 1px;
}
<div>Lorem Ipsum</div>
(note - the content...