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Copy a variable's value into another
...eat. However, how expensive is this during processing? It seems this works by double negating.
– Abel Callejo
Jun 23 at 22:52
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FormsAuthentication.SignOut() does not log the user out
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Using two of the above postings by x64igor and Phil Haselden solved this:
1. x64igor gave the example to do the Logout:
You first need to Clear the Authentication Cookie and Session Cookie by passing back empty cookies in the Response to the Logout.
pub...
String concatenation in MySQL
...omments, you can enable string concatenation with the || operator in MySQL by setting the PIPES_AS_CONCAT SQL mode.
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Questions every good .NET developer should be able to answer? [closed]
...of .NET. Volatiles and weak references are two low-level features provided by .NET -- even if these features aren't used often in practice, answers to these questions are extremely revealing:
A good understanding of volatiles demonstrates that a person understands how compiler optimizations change...
Multiple github accounts on the same computer?
...ent repositories, from git 2.13 you can set the email on a directory basis by editing the global config file found at: ~/.gitconfig using conditionals like so:
[user]
name = Pavan Kataria
email = defaultemail@gmail.com
[includeIf "gitdir:~/work/"]
path = ~/work/.gitconfig
And then yo...
Search for all files in project containing the text 'querystring' in Eclipse
...at quick search has been included into eclipse 4.13 as a built-in function by typing Ctrl+Alt+Shift+L (or Cmd+Alt+Shift+L on Mac)
https://www.eclipse.org/eclipse/news/4.13/platform.php#quick-text-search
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My docker container has no internet
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For Ubuntu 16.04 and earlier, /etc/resolv.conf was dynamically generated by NetworkManager.
Comment out the line dns=dnsmasq (with a #) in /etc/NetworkManager/NetworkManager.conf
Restart the NetworkManager to regenerate /etc/resolv.conf :
sudo systemctl restart network-manager
Verify on the hos...
What is the difference between NaN and None?
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np.nan allows for vectorized operations; its a float value, while None, by definition, forces object type, which basically disables all efficiency in numpy.
So repeat 3 times fast: object==bad, float==good
Saying that, many operations may still work just as well with None vs NaN ...
#1071 - Specified key was too long; max key length is 1000 bytes
...to storage or the range of values allowed for the column. INT is always 4 bytes, and it always allows values from -2147483648 to 2147483647. The numeric argument is about padding values during display, which has no effect unless you use the ZEROFILL option.
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How do I clone a GitHub wiki?
...clone the github Wiki into the same directory as your repo? Again followed by: Can I then do a normal git push to that repo?
– not2qubit
May 19 '17 at 7:34
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