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Can I set variables to undefined or pass undefined as an argument?

I’m a bit confused about JavaScript’s undefined and null values. 10 Answers 10...
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Pushing from local repository to GitHub hosted remote

I created a local repository of my Visual Studio 2010 solution folder using Git GUI on my dev machine. I then created a remote repository in my GitHub account. Now, I am looking for how to push my local repository to the remote repository. ...
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Principal component analysis in Python

...nalysis (PCA) for dimensionality reduction. Does numpy or scipy already have it, or do I have to roll my own using numpy.linalg.eigh ? ...
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Command line for looking at specific port

Is there a way to examine the status of a specific port from the Windows command line? I know I can use netstat to examine all ports but netstat is slow and looking at a specific port probably isn't. ...
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ConnectionTimeout versus SocketTimeout

I'm having a problem with a library that I am using. It might be the library or it might be me using it wrong! 2 Answers ...
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Why does the lock object have to be static?

It is very common to use a private static readonly object for locking in multi threading. I understand that private reduces the entry points to the locking object by tightening the encapsulation and therefore access to the most essential. ...
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Specify custom Date format for colClasses argument in read.table/read.csv

...fy the Date format when using the colClasses argument in read.table/read.csv? 4 Answers ...
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Find the min/max element of an Array in JavaScript

How can I easily obtain the min or max element of a JavaScript Array? 51 Answers 51 ...
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background-size in shorthand background property (CSS3)

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Check if a value is within a range of numbers

I want to check if a value is in an accepted range. If yes, to do something; otherwise, something else. 7 Answers ...