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How can I get rid of an “unused variable” warning in Xcode?

...more important errors. It would better to be able to suppress the error in blocks of code being actively edited. – TechZen Mar 11 '14 at 18:43 ...
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Text border using css (border around text)

...; font-size:70px; font-weight: bold; } svg { display: block; } text { fill: black; stroke: red; stroke-width: 3; } <p class="stroke"> <svg xmlns="http://www.w3.org/2000/svg" width="700" height="72" viewBox="0 0 700 72"> <text x...
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Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术

...: location ~* \.(gif|jpg|png|swf|flv)$ { valid_referers none blocked www.jefflei.comwww.leizhenfang.com; if ($invalid_referer) { return 404; } } 记一正则,匹配非某单词,由于要rewrite一个地址从/mag/xx/xxx/ -> /m/xxx,但原先 /m...
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面部贴纸 · App Inventor 2 中文网

... 设置电脑和手机 起始工程:面部贴纸.aia 起始工程 Blocks:面部贴纸.asc 硬件测试工程:面部贴纸测试.aia FaceExtension 不能在模拟器中运行。请先用 AI2 Companion 打开测试工程,确认手机硬件和扩展可以工作。 面部贴纸教程...
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App Inventor 2 PrivacyPolicyAI2Ext 拓展:隐私政策弹窗、隐私确认弹窗 ·...

...g:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } /*手机版:反馈浮动按钮收小*/ @media screen and (max-width: 700px) { .feedback-po...
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HTML - Display image after selecting filename [duplicate]

...e, aside, figure, footer, header, hgroup, menu, nav, section { display: block; } </style> </head> <body> <input type='file' onchange="readURL(this);" /> <img id="blah" src="#" alt="your image" /> </body> </html> Script: function readURL(input) { ...
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Visual Studio Expand/Collapse keyboard shortcuts [duplicate]

... open, I can press CTRL + M or CTRL + M + O to collapse all code blocks, regions, namespaces, etc. 7 Answers ...
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How to allocate aligned memory only using the standard library?

...re expected to write a full memory allocator and ensure that the 1024-byte block you return is appropriately aligned. If that is the case, you probably end up doing an operation fairly similar to what the proposed solution did, but you hide it inside the allocator. However, if the interviewer exp...
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Multiple constructors in python? [duplicate]

..."): ... ... In general, you have two options: 1) Do if-elif blocks based on the type: def __init__(self, name): if isinstance(name, str): ... elif isinstance(name, City): ... ... 2) Use duck typing --- that is, assume the user of your class is intelligen...
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How many socket connections can a web server handle?

...ic on a single Unix flavoured OS machine - https://blog.whatsapp.com/index.php/2012/01/1-million-is-so-2011/. And finally, this one, http://highscalability.com/blog/2013/5/13/the-secret-to-10-million-concurrent-connections-the-kernel-i.html, goes into a lot of detail, exploring how even 10 million c...