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Difference between \w and \b regular expression meta characters
...chor like the caret and the dollar sign. It matches at a position that is called a "word boundary". This match is zero-length.
There are three different positions that qualify as word boundaries:
Before the first character in the string, if the first character is
a word character.
After the last ...
django change default runserver port
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You can't run the development server programmatically, so a custom command won't work unless it calls the shell using something like call. If this solution works for you please make sure to mark it as solved.
– Pablo Albornoz
May 13 '1...
How to turn off INFO logging in Spark?
I installed Spark using the AWS EC2 guide and I can launch the program fine using the bin/pyspark script to get to the spark prompt and can also do the Quick Start quide successfully.
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How to parse a string into a nullable int
...l) ? Int32.Parse(stringVal) : (int?)null;
With C#7's updated syntax that allows you to declare an output variable in the method call, this gets even simpler.
int? val = Int32.TryParse(stringVal, out var tempVal) ? tempVal : (int?)null;
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How to remove selected commit log entries from a Git repository while keeping their changes?
...ke to remove.
git rebase --onto commit-id^ commit-id
Note that this actually removes the change that was introduced by the commit.
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Manipulate a url string by adding GET parameters
...category'] = 2; // Overwrite if exists
$params['tags'][] = 'cool'; // Allows multiple values
// Note that this will url_encode all values
$url_parts['query'] = http_build_query($params);
// If you have pecl_http
echo http_build_url($url_parts);
// If not
echo $url_parts['scheme'] . '://' . $...
What is an Endpoint?
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All of the answers posted so far are correct, an endpoint is simply one end of a communication channel. In the case of OAuth, there are three endpoints you need to be concerned with:
Temporary Credential Request URI (calle...
Error: CUICatalog: Invalid asset name supplied: (null), or invalid scale factor : 2.000000
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This error (usually) happens when you try to load an image with [UIImage imageNamed:myImage] but iOS is not sure if myImage is really a NSString and then you have this warning.
You can fix this using:
[UIImage imageNamed:[NSString stringW...
Color different parts of a RichTextBox string
...ome trouble with this. I used in another place box.Text += mystring and so all the colors disappeared. When I replaced this with box.AppendText(mystring), it worked like a charme.
– Natrium
Apr 13 '12 at 11:38
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Android SDK manager won't open
So I installed the android sdk for Windows:
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