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Convert integer to hexadecimal and back again

...; from http://www.geekpedia.com/KB8_How-do-I-convert-from-decimal-to-hex-and-hex-to-decimal.html share | improve this answer | follow | ...
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HTML5: number input type that takes only integers?

...In the HTML5 specification, the input type "number" can have both integers and floating-point numbers. This seems incredibly short-sighted since it will only be a useful validator when your database fields are signed floating-point numbers (for unsigned ints you'll have to fall back to "pattern" val...
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Convert between UIImage and Base64 string

Does anyone know how to convert a UIImage to a Base64 string, and then reverse it? 24 Answers ...
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Detect browser or tab closing

... edited Apr 22 '14 at 9:17 sandip 3,12144 gold badges2626 silver badges5151 bronze badges answered Oct 8 '10 at 8:39 ...
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“for loop” with two variables? [duplicate]

...use: for i, j in zip(range(x), range(y)): # Stuff... Note that if x and y are not the same length, zip will truncate to the shortest list. As @abarnert pointed out, if you don't want to truncate to the shortest list, you could use itertools.zip_longest. UPDATE Based on the request for "a f...
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Using XPATH to search text containing  

...ormalizes whitespace within elements, ignoring leading/trailing spaces and converting extra spaces, tabs and newlines into a single space. When Selenium reads text out of the page, it attempts to duplicate this behavior, so you can ignore all the tabs and newlines in your HTML and do...
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.gitignore exclude folder but include specific subfolder

...ing /* is significant: The pattern dir/ excludes a directory named dir and (implicitly) everything under it. With dir/, Git will never look at anything under dir, and thus will never apply any of the “un-exclude” patterns to anything under dir. The pattern dir/* says nothing about dir itself...
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What is the best comment in source code you have ever encountered? [closed]

...ticularly guilty of this, embedding non-constructive comments, code poetry and little jokes into most of my projects (although I usually have enough sense to remove anything directly offensive before releasing the code). Here's one I'm particulary fond of, placed far, far down a poorly-designed 'God...
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Scala list concatenation, ::: vs ++

Is there any difference between ::: and ++ for concatenating lists in Scala? 4 Answers ...
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Are SVG parameters such as 'xmlns' and 'version' needed?

... so you can always drop that. If you embed your SVG inline in a HTML page and serve that page as text/html then xmlns attributes are not required. Embedding SVG inline in HTML documents is a fairly recent innovation that came along as part of HTML5. If however you serve your page as image/svg+xml ...