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How can I rename a field for all documents in MongoDB?
Assuming I have a collection in MongoDB with 5000 records, each containing something similar to:
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python's re: return True if string contains regex pattern
I have a regular expression like this:
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Calculate distance between 2 GPS coordinates
How do I calculate distance between two GPS coordinates (using latitude and longitude)?
29 Answers
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Regex for string contains?
What is the regex for simply checking if a string contains a certain word (e.g. 'Test')? I've done some googling but can't get a straight example of such a regex. This is for a build script but has no bearing to any particular programming language.
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Split comma-separated strings in a column into separate rows
I have a data frame, like so:
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How can I get the max (or min) value in a vector?
How can I get the max (or min) value in a vector in C++ ?
10 Answers
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To find whether a column exists in data frame or not
I have a data.frame with the name "abcframe"
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How to RedirectToAction in ASP.NET MVC without losing request data
Using ASP.NET MVC there are situations (such as form submission) that may require a RedirectToAction .
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Perform Segue programmatically and pass parameters to the destination view
in my app I've a button that performs a segue programmatically:
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