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How to atomically delete keys matching a pattern using Redis
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Starting with redis 2.6.0, you can run lua scripts, which execute atomically. I have never written one, but I think it would look something like this
EVAL "return redis.call('del', unpack(redis.call('keys', ARGV[1])))" 0 prefix:[YOUR_...
How can I add or update a query string parameter?
With javascript how can I add a query string parameter to the url if not present or if it present, update the current value? I am using jquery for my client side development.
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How to document Python code with doxygen [closed]
...hink I remember that Python doesn't have /* .. */ comments, and also has its own self-documentation facility which seems to be the pythonic way to document.
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Version number comparison in Python
I want to write a cmp -like function which compares two version numbers and returns -1 , 0 , or 1 based on their compared valuses.
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How to rethrow InnerException without losing stack trace in C#?
...d which may cause an exception. How can I pass the exception to my caller without the wrapper reflection puts around it?
I am rethrowing the InnerException, but this destroys the stack trace.
Example code:
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Printing a variable memory address in swift
Is there anyway to simulate the [NSString stringWithFormat:@"%p", myVar] , from Objective-C, in the new Swift language?
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Escape Character in SQL Server
I want to use quotation with escape character. How can I do?
9 Answers
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Download file from an ASP.NET Web API method using AngularJS
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Support for downloading binary files in using ajax is not great, it is very much still under development as working drafts.
Simple download method:
You can have the browser download the requested file simply by using the code below, and this is supported in all browsers, and will obviou...
Fast Linux File Count for a large number of files
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Note that this will also enable -a, so ., .., and other files starting with . will be counted.
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Declaration/definition of variables locations in ObjectiveC?
...one could be declaring and defining variables. On one hand we have the traditional C approach, on the other we have the new ObjectiveC directives that add OO on top of that. Could you folks helps me understand the best practice and situations where I'd want to use these locations for my variables an...