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Why is document.body null in my javascript?

... that uses body. Not cool. You want to wrap this code in a window.onload handler or place it after the <body> tag (as mentioned by e-bacho 2.0). <head> <title>Javascript Tests</title> <script type="text/javascript"> window.onload = function() { ...
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Predicate in Java

... someone guide me to any tutorial or conceptual explanation of Predicate and its implementation in Java? 4 Answers ...
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What integer hash function are good that accepts an integer hash key?

... a multiplier that is in the order of your hash size (2^32 in the example) and has no common factors with it. This way the hash function covers all your hash space uniformly. Edit: The biggest disadvantage of this hash function is that it preserves divisibility, so if your integers are all divisibl...
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What is the difference between “screen” and “only screen” in media queries?

What is the difference between screen and only screen in media queries? 5 Answers ...
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window.close and self.close do not close the window in Chrome

...curity feature, introduced a while ago, to stop various malicious exploits and annoyances. From the latest working spec for window.close(): The close() method on Window objects should, if all the following conditions are met, close the browsing context A: The corresponding browsing cont...
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What's the purpose of git-mv?

From what I understand, Git doesn't really need to track file rename/move/copy operations, so what's the real purpose of git mv ? The man page isn't specially descriptive... ...
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Can enums be subclassed to add new elements?

I want to take an existing enum and add more elements to it as follows: 15 Answers 15 ...
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Why is Go so slow (compared to Java)?

... The 6g and 8g compilers are not particularly optimising, so the code they produce isn't particularly fast. They're designed to run fast themselves and produce code that's OK (there is a bit of optimisation). gccgo uses GCC's existi...
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How do I move an existing window to a new tab?

Is there a way to take an existing window (split) and put it into a new tab? 4 Answers ...
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How to implement my very own URI scheme on Android

... This is very possible; you define the URI scheme in your AndroidManifest.xml, using the <data> element. You setup an intent filter with the <data> element filled out, and you'll be able to create your own scheme. (More on intent filters and intent resolution here.) H...