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What is the purpose of the “role” attribute in HTML?

... Most of the roles you see were defined as part of ARIA 1.0, and then later incorporated into HTML via supporting specs like HTML-AAM. Some of the new HTML5 elements (dialog, main, etc.) are even based on the original ARIA roles. http://www.w3.org/TR/wai-aria/ There are a few primary r...
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What does the keyword Set actually do in VBA?

... A VB object reference is not quite the same as a C pointer. And there is no equivalent of "&i" in VB. – Tomalak Dec 8 '08 at 14:02 10 ...
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C++ Const Usage Explanation

...hanged, to an int that cannot be changed: the only difference between this and const int& is that it can be null const int* const& means a reference to a constant pointer to a constant int. Usually pointers are not passed by reference; const int* & makes more sense because it would mean...
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How to hide TabPage from TabControl [duplicate]

... No, this doesn't exist. You have to remove the tab and re-add it when you want it. Or use a different (3rd-party) tab control. share | improve this answer | ...
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How to scale SVG image to fill browser window?

...my site using (roughly) this technique, albeit with 5% padding all around, and using position:absolute instead of position:fixed: http://phrogz.net/svg/svg_in_xhtml5.xhtml (Using position:fixed prevents a very edge-case scenario of linking to a sub-page anchor on the page, and overflow:hidden can e...
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When should I use nil and NULL in Objective-C?

... technically, they are exactly equal, you can send messages to both nil and to NULL. Idiomatically though nil is usually used to represent an object – cobbal Oct 14 '09 at 5:43 ...
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Colspan/Rowspan for elements whose display is set to table-cell

... does not explicitly rule that solution must be pure CSS, I'll be stubborn and throw in my workaround I figured out today, especially since it's much more elegant than having a table inside a table. Example equals to <table> with two cells per row and two rows, where the cell in the second ro...
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How can I tell who forked my repository on GitHub?

...can see the number of forks, but I'd like to know who forked my repository and what kind of changes they made to it. 3 Answ...
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When is std::weak_ptr useful?

I started studying smart pointers of C++11 and I don't see any useful use of std::weak_ptr . Can someone tell me when std::weak_ptr is useful/necessary? ...
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How to log request and response body with Retrofit-Android?

... I used setLogLevel(LogLevel.FULL).setLog(new AndroidLog("YOUR_LOG_TAG")), it helped me. UPDATE. You can also try for debug purpose use retrofit.client.Response as response model share |...