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Should I be concerned about excess, non-running, Docker containers?
...work like so:
sudo docker run -i -t --rm ubuntu /bin/bash
When you exit from the container it will be automatically removed.
You can test this by listing your docker containers in one terminal window:
watch -n1 'sudo ls -c /var/lib/docker/containers'
And then in another window run this comman...
How to see which plugins are making Vim slow?
...m instantly gets faster.
With plugins, a "general slowness" usually comes from autocommands; a :autocmd lists them all. Investigate by killing some of them via :autocmd! [group] {event}. Proceed from more frequent events (i.e. CursorMoved[I]) to less frequent ones (e.g. BufWinEnter).
If you can so...
What to add for the update portion in ConcurrentDictionary AddOrUpdate
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Good answer. Just from the signature of the AddOrUpdate() displayed in Visual Studio you can only guess the meaning of the 2 parameters. However in the specific case, that @user438331 asks about, I think the solution in my answer using a simpl...
What is the difference between setUp() and setUpClass() in Python unittest?
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The output in the answer is correct. I pasted it directly from unittest’s output. setUp and tearDown are each run once for every test method (so twice in total in this example) but setUpClass and tearDownClass are run just once each.
– Benjamin Hodgson♦
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When is a function too long? [closed]
...s in a function, make each small thing a function and call those functions from the long function.
What you really don't want to do is copy and paste every 10 lines of your long function into short functions (as your example suggests).
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How to overcome root domain CNAME restrictions?
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I couldn't agree more. Wanting to host a site from the 'naked' domain name is a common and logical thing to do. It uses less characters, it looks better etc. The url's own protocol identifier (www) is a vestigial part of the url if was even necessary in the first place (...
Difference between Divide and Conquer Algo and Dynamic Programming
...approaches towards obtaining the nth fibonacci number. Check this material from MIT.
Divide and Conquer approach
Dynamic Programming Approach
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Upload files with HTTPWebrequest (multipart/form-data)
...DATE: Using .NET 4.5 (or .NET 4.0 by adding the Microsoft.Net.Http package from NuGet) this is possible without external code, extensions, and "low level" HTTP manipulation. Here is an example:
// Perform the equivalent of posting a form with a filename and two files, in HTML:
// <form action="{...
python numpy ValueError: operands could not be broadcast together with shapes
...sk can be used as matrix multiplication. My recommendation is to keep away from numpy.matrix, it tends to complicate more than simplify things.)
Your arrays should be fine with numpy.dot; if you get an error on numpy.dot, you must have some other bug. If the shapes are wrong for numpy.dot, you get ...
Is the practice of returning a C++ reference variable evil?
...erity, and for any newer programmers chancing upon this, just return the T from the function. RVO will take care of everything.
– Shoe
Apr 9 '15 at 19:59
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