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What is the difference between D3 and jQuery?

...with jQuery you directly manipulate elements, but with D3 you provide data and callbacks through D3's unique data(), enter() and exit() methods and D3 manipulates elements. D3 is usually used for data visualization but jQuery is used for creating web apps. D3 has many data visualization extensions a...
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jQuery map vs. each

In jQuery, the map and each functions seem to do the same thing. Are there any practical differences between the two? When would you choose to use one instead of the other? ...
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Overflow-x:hidden doesn't prevent content from overflowing in mobile browsers

... Creating a site wrapper div inside the <body> and applying the overflow-x:hidden to the wrapper instead of the <body> or <html> fixed the issue. It appears that browsers that parse the <meta name="viewport"> tag simply ignore overflow attributes on t...
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How to decide font color in white or black depending on background color?

...need to break the hex code into 3 pieces to get the individual red, green, and blue intensities. Each 2 digits of the code represent a value in hexadecimal (base-16) notation. I won't get into the details of the conversion here, they're easy to look up. Once you have the intensities for the individ...
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JavaScript private methods

... every object instance, it creates a separate function bound to the object and not the class. Also, this does not get garbage collected until the object itself is destroyed. – Arindam Feb 6 '12 at 22:37 ...
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Break promise chain and call a function based on the step in the chain where it is broken (rejected)

...et's say you have something like the following: stepOne() .then(stepTwo, handleErrorOne) .then(stepThree, handleErrorTwo) .then(null, handleErrorThree); To better understand what's happening, let's pretend this is synchronous code with try/catch blocks: try { try { try { ...
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Should I learn C before learning C++? [closed]

I visited a university CS department open day today and in the labs tour we sat down to play with a couple of final-year projects from undergraduate students. One was particularly good - a sort of FPS asteroids game. I decided to take a peek in the src directory to find it was done in C++ (most of...
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Best way to represent a fraction in Java?

...too long ago, for Project Euler problems. It keeps a BigInteger numerator and denominator, so it'll never overflow. But it'll be a tad slow for a lot of operations that you know will never overflow.. anyway, use it if you want it. I've been dying to show this off somehow. :) Edit: Latest and gre...
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Significant new inventions in computing since 1980

...World Wide Web ("distributed hypertext via simple mechanisms") as proposed and implemented by Tim Berners-Lee started in 1989/90. While the idea of hypertext had existed before (Nelson’s Xanadu had tried to implement a distributed scheme), the WWW was a new approach for implementing a distribute...
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Difference between std::system_clock and std::steady_clock?

What is the difference between std::system_clock and std::steady_clock ? (An example case that illustrate different results/behaviours would be great). ...