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Why is quicksort better than mergesort?
I was asked this question during an interview. They're both O(nlogn) and yet most people use Quicksort instead of Mergesort. Why is that?
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Command to collapse all sections of code?
In Visual Studio is there a command to collapse/expand all the sections of code in a file?
20 Answers
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Best way to convert strings to symbols in hash
What's the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby?
31 Answers...
Algorithm to return all combinations of k elements from n
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How to ssh to vagrant without actually running “vagrant ssh”?
I would like to reproduce the way Vagrant logs in to my VM within a shell script using an ssh command, so I create an alias to my Vagrant instance.
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What is the fastest integer division supporting division by zero no matter what the result is?
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Check whether variable is number or string in JavaScript
Does anyone know how can I check whether a variable is a number or a string in JavaScript?
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Create a dictionary with list comprehension
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Remove carriage return in Unix
What is the simplest way to remove all the carriage returns \r from a file in Unix?
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How to exclude a directory in find . command
I'm trying to run a find command for all JavaScript files, but how do I exclude a specific directory?
38 Answers
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