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Regular expression to allow spaces between words
...ass.
^[a-zA-Z0-9_ ]*$
Now, if you want to be strict...
The above isn't exactly correct. Due to the fact that * means zero or more, it would match all of the following cases that one would not usually mean to match:
An empty string, "".
A string comprised entirely of spaces, " ...
How to make exe files from a node.js app?
...e executables by simply appending resources to it.
A third quasi-solution is to keep node somewhere like C:\utils and add this folder to your PATH environment variable. Then you can create .bat files in that dir that run node + your preferred scripts - I got coffeescript's coffee working on windows...
Better way to set distance between flexbox items
To set the minimal distance between flexbox items I'm using margin: 0 5px on .item and margin: 0 -5px on container. For me it seems like a hack, but I can't find any better way to do this.
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Reopen last closed tab in Visual Studio
Is there any way to reopen the last closed tab in Visual Studio? Similar to Ctrl + Shift + t in FireFox and Chrome?
8 Ans...
Kill detached screen session [closed]
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You can kill a detached session which is not responding within the screen session by doing the following.
Type screen -list to identify the detached screen session.
~$ screen -list
There are screens on:
20751.Melvin_Peter_V42 (Detached)
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Serialize Class containing Dictionary member
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You can't serialize a class that implements IDictionary. Check out this link.
Q: Why can't I serialize hashtables?
A: The XmlSerializer cannot process
classes implementing the IDictionary
interface. This was partly due to
schedule constraints and partly due to
the fact that a ...
Generating random number between 1 and 10 in Bash Shell Script [duplicate]
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$(( ( RANDOM % 10 ) + 1 ))
EDIT. Changed brackets into parenthesis according to the comment.
http://web.archive.org/web/20150206070451/http://islandlinux.org/howto/generate-random-numbers-bash-scripting
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Remove a cookie
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You May Try this
if (isset($_COOKIE['remember_user'])) {
unset($_COOKIE['remember_user']);
setcookie('remember_user', null, -1, '/');
return true;
} else {
return false;
}
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Display image as grayscale using matplotlib
I'm trying to display a grayscale image using matplotlib.pyplot.imshow() . My problem is that the grayscale image is displayed as a colormap. I need the grayscale because I want to draw on top of the image with color.
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ViewController respondsToSelector: message sent to deallocated instance (CRASH)
Ok, here is the deal, I hate putting out questions about my debugging and crashes. Because I usually handle them myself, but I just cannot get my way around this, even after viewing multiple questions already .
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