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How to rename a single column in a data.frame?

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Where is Java Installed on Mac OS X?

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Installing PIL with pip

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Remove all unused resources from an android project

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Understanding prototypal inheritance in JavaScript

I am new to JavaScript OOP. Can you please explain the difference between the following blocks of code? I tested and both blocks work. What's the best practice and why? ...
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Stop/Close webcam which is opened by navigator.getUserMedia

I opened a webcam by using the following JavaScript code: navigator.getUserMedia 16 Answers ...
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What is the “->” PHP operator called and how do you say it when reading code out loud? [closed]

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Single vs double quotes in JSON

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Android Replace “…” with ellipsis character

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How do I programmatically get the GUID of an application in .net2.0

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