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What does !important mean in CSS?

...gards the 'later' rule overriding the 'earlier' ones. Also, ordinarily, a more specific rule will override a less-specific rule. So: a { /* css */ } Is normally overruled by: body div #elementID ul li a { /* css */ } As the latter selector is more specific (and it doesn't, normally,...
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What is the most efficient way to concatenate N arrays?

... If you're concatenating more than two arrays, concat() is the way to go for convenience and likely performance. var a = [1, 2], b = ["x", "y"], c = [true, false]; var d = a.concat(b, c); console.log(d); // [1, 2, "x", "y", true, false]; For conca...
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while (1) Vs. for (;;) Is there a speed difference?

...hances are the code inside of the loop is going to be a few thousand times more expensive than the loop itself anyway, so who cares? share | improve this answer | follow ...
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What are important languages to learn to understand different approaches and concepts? [closed]

...nguage paradigms will only serve to make you a better programmer. What is more practical than that? Functional, Haskell - I know you said that you didn't want to, but you should really really reconsider. You've gotten some functional exposure with Clojure and even Python, but you've not experienc...
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Prevent contenteditable adding on ENTER - Chrome

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What is a columnar database?

... an additional indication that such an approach for DBMSes strays from the more "natural" (and certainly more broadly used) approach to storing record entities. As a result, this approach is used when the row-oriented approach isn't satisfactory, and therefore and tends to a) be targeted for a pa...
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How do I convert seconds to hours, minutes and seconds?

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Multiple returns from a function

... Technically, you can't return more than one value. However, there are multiple ways to work around that limitation. The way that acts most like returning multiple values, is with the list keyword: function getXYZ() { return array(4,5,6); } list($x,$...
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How to initialize std::vector from C-style array?

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Android: set view style programmatically

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