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How can I scale an image in a CSS sprite

In this article, http://css-tricks.com/css-sprites/ , it talks about how can I crop off a smaller image from 1 bigger image. Can you please tell me if it is possible/how I can crop off a smaller image and then scale the cropped off region before I lay it out? ...
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Which is better, number(x) or parseFloat(x)?

... 5 Answers 5 Active ...
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Cost of exception handlers in Python

In another question , the accepted answer suggested replacing a (very cheap) if statement in Python code with a try/except block to improve performance. ...
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How to put the legend out of the plot

I have a series of 20 plots (not subplots) to be made in a single figure. I want the legend to be outside of the box. At the same time, I do not want to change the axes, as the size of the figure gets reduced. Kindly help me for the following queries: ...
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What do the numbers in a version typically represent (i.e. v1.9.0.1)?

Maybe this is a silly question, but I've always assumed each number delineated by a period represented a single component of the software. If that's true, do they ever represent something different? I'd like to start assigning versions to the different builds of my software, but I'm not really sure...
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Understanding how recursive functions work

As the title explains I have a very fundamental programming question which I have just not been able to grok yet. Filtering out all of the (extremely clever) "In order to understand recursion, you must first understand recursion." replies from various online threads I still am not quite getting it....
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How to insert a row in an HTML table body in JavaScript

I have an HTML table with a header and a footer: 9 Answers 9 ...
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C# how to create a Guid value?

One field of our struct is Guid type. How to generate a valid value for it? 11 Answers ...
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How do I use arrays in C++?

C++ inherited arrays from C where they are used virtually everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, ...
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UIButton: how to center an image and a text using imageEdgeInsets and titleEdgeInsets?

If I put only an image in a button and set the imageEdgeInsets more close to the top, the image stays centered and all works as expected: ...