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Algorithm to return all combinations of k elements from n
I want to write a function that takes an array of letters as an argument and a number of those letters to select.
71 Answe...
How to return a part of an array in Ruby?
With a list in Python I can return a part of it using the following code:
6 Answers
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Ruby replace string with captured regex pattern
I am having trouble translating this into Ruby.
6 Answers
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How to create index in Entity Framework 6.2 with code first
Is there a way to create an index on a property/column using code-first, instead of using the new IndexAttribute ?
10 Ans...
Get PostGIS version
How can I find out which version of PostGIS I have?
5 Answers
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Proper way to catch exception from JSON.parse
I’m using JSON.parse on a response that sometimes contains a 404 response. In the cases where it returns 404, is there a way to catch an exception and then execute some other code?
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Finding the path of the program that will execute from the command line in Windows
Say I have a program X.EXE installed in folder c:\abcd\happy\ on the system. The folder is on the system path. Now suppose there is another program on the system that's also called X.EXE but is installed in folder c:\windows\ .
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How do you use window.postMessage across domains?
It seems like the point of window.postMessage is to allow safe communication between windows/frames hosted on different domains, but it doesn't actually seem to allow that in Chrome.
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Hide all warnings in ipython
I need to produce a screencast of an ipython session, and to avoid confusing viewers, I want to disable all warnings emitted by warnings.warn calls from different packages. Is there a way to configure the ipythonrc file to automatically disable all such warnings?
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How I can delete in VIM all text from current line to end of file?
I have very large files (more than 10Gb). I need only some lines from the top of the file. Is it possible (in vim) to delete the rest of the file (from current line to the end of file)?
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