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CSS selector for first element with class

... This is one of the most well-known examples of authors misunderstanding how :first-child works. Introduced in CSS2, the :first-child pseudo-class represents the very first child of its parent. That's it. There's a very common misconception that it picks u...
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Is gcc 4.8 or earlier buggy about regular expressions?

...the implementation. Most parts of the library were more complete and are now almost fully implemented, but <regex> hadn't been, so it stayed in the same unfinished state since it was added. Seriously though, who though that shipping an implementation of regex_search that only does "retur...
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How do I create a basic UIButton programmatically?

... i write as it as you defined, now i have defined constant in VC and other parts inside the function – Xcodian Solangi Dec 20 '17 at 10:01 ...
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What is the opposite of :hover (on mouse leave)?

... @Cthulhu - I've edited my answer now. That might help a bit more. I thought that was too obvious an answer. – SpaceBeers Jun 12 '12 at 11:07 ...
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How to extract base URL from a string in JavaScript?

...ocol = pathArray[0]; host = pathArray[2]; url = protocol + '://' + host; //now url === "http:://stackoverflow.com" checkout :: – user405398 Sep 6 '13 at 3:44 ...
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Extract first item of each sublist

...t2[0] lst2 = [['a', 1, 'x']] lst2[0] = ['a', 1, 'x'] Please let me know if I am incorrect. share | improve this answer | follow | ...
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How to change the name of an iOS app?

...an an iPhone project the other day with a silly development code name, and now I want to change the name of the project since it's nearly finished. ...
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What is the best way to do GUIs in Clojure?

...gest Seesaw. Here's a REPL-based tutorial that assumes no Java or Swing knowledge. Seesaw's a lot like what @tomjen suggests. Here's "Hello, World": (use 'seesaw.core) (-> (frame :title "Hello" :content "Hello, Seesaw" :on-close :exit) pack! show!) and here's @Abhijith ...
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Can I use multiple versions of jQuery on the same page?

... -- $ and jQuery belong to versionX. You call your "jquery.versionY.js" -- now $ and jQuery belong to versionY, plus _$ and _jQuery belong to versionX. my_jQuery = jQuery.noConflict(true); -- now $ and jQuery belong to versionX, _$ and _jQuery are probably null, and my_jQuery is versionY. ...
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std::string to float or double

... It's great to know that the C++ standards committee added this. ostringstream in itself was simply too long to type out, let alone use .. – bobobobo Jan 23 '14 at 17:41 ...