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wildcard * in CSS for classes

... What you need is called attribute selector. An example, using your html structure, is the following: div[class^="tocolor-"], div[class*=" tocolor-"] { color:red } In the place of div you can add any element or remove it altogether, an...
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Difference between \n and \r?

...e 10 and 13 respectively;-). But seriously, there are many: in Unix and all Unix-like systems, \n is the code for end-of-line, \r means nothing special as a consequence, in C and most languages that somehow copy it (even remotely), \n is the standard escape sequence for end of line (translated to...
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GCC -fPIC option

...ll required one more calculation (the function address) for each function call. So performance-wise, if not needed it is better not to use it. – Roee Gavirel Apr 21 at 6:41 ad...
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Inputting a default image in case the src attribute of an html is not valid?

...body> </html> Since the first image doesn't exist, the fallback (the sprites used on this web site*) will display. And if you're using a really old browser that doesn't support object, it will ignore that tag and use the img tag. See caniuse website for compatibility. This element...
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Ninject vs Unity for DI [closed]

...ation to derive from NinjectHttpApplication, spin up the Kernel in it and call RegisterAllControllersIn(Assembly.GetExecutingAssembly()) to have it take care of all controllers in the given assembly. Magic. – Michael Stum♦ Dec 28 '09 at 13:48 ...
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“Cloning” row or column vectors

...he result contain a single distinct element each. – BallpointBen Apr 13 '18 at 21:11 This should be the accepted answe...
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Why doesn't std::queue::pop return value.?

... T pop() { auto x = elements[top_position]; // TODO: call destructor for elements[top_position] here --top_position; // alter queue state here return x; // calls T(const T&) which may throw } If the copy constructor of T throws on return, you ha...
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Differences between distribute, distutils, setuptools and distutils2?

...e Foundation just adds credence to it. The Project Summaries page is especially relevant here. Summary of tools: Here's a summary of the Python packaging landscape: Supported tools: distutils is still the standard tool for packaging in Python. It is included in the standard library (Python 2 an...
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Bootstrap Alert Auto Close

My need is to call alert when I click on Add to Wishlist button and should disappear the alert in 2 secs. This is how I tried, but the alert is disappearing instantly as soon as it is appearing. Not sure, where the bug is.. Can anyone help me out? ...
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What does auto do in margin:0 auto?

...e object that you have applied margin: 0 auto to, the object will sit centrally within it's parent container. Specifying auto as the second parameter basically tells the browser to automatically determine the left and right margins itself, which it does by setting them equally. It guarantees that t...