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Best way to detect that HTML5 is not supported

... @2astalavista The double negative (!!) is like casting. It turns a truey or falsey statement into a boolean. For example: var i = 0. i evaluates to false, but typeof i returns "number". typeof !!i returns "boolean". – User2 Jun 12 '1...
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Random string generation with upper case letters and digits

... This way isn't bad but it's not quite as random as selecting each character separately, as with sample you'll never get the same character listed twice. Also of course it'll fail for N higher than 36. – bobince Feb 13 '10 at 12:54 ...
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What's the difference between “groups” and “captures” in .NET regular expressions?

...rp> Regex.Match("3:10pm", @"((\d)+):((\d)+)(am|pm)"). > Groups.Cast<Group>(). > Zip(Enumerable.Range(0, int.MaxValue), (g, n) => "[" + n + "] " + g); { "[0] 3:10pm", "[1] 3", "[2] 3", "[3] 10", "[4] 0", "[5] pm" } So where's the 1? Since there are multiple digits th...
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使用CSplitterWnd实现拆分窗口(多视图显示) - C/C++ - 清泛网 - 专注C/C++及内核技术

...行了划分和初始化 //获取主窗口 CMainFrame* pFrame=static_cast<CMainFrame*>(AfxGetMainWnd()); //获取某个view CMyTreeView* pView=static_cast<CMyTreeView*>(pFrame->m_wndTopSplitter.GetPane(0,0)); //激活View pFrame->SetActiveView(pView); pFrame->m_wndTopSplitter.RecalcLayo...
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Are HLists nothing more than a convoluted way of writing tuples?

...provides a form of polymorphic function value which allows the compiler to select type-specific cases in exactly the way you're doubtful about. For instance, // size is a function from values of arbitrary type to a 'size' which is // defined via type specific cases object size extends Poly1 { imp...
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WCF timeout exception detailed investigation

...on it (Should be something like GET /service.svc or POST /service.svc) and select Follow TCP Stream. Wireshark will decode the entire HTTP Conversation, so you can ensure that WCF is actually sending back responses. share...
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Why can I throw null in Java? [duplicate]

... why does it upcast it to a NullPointerException? As per JLS 14.18: A throw statement first evaluates the Expression. If the evaluation of the Expression completes abruptly for some reason, then the throw completes abruptly for that re...
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How do I check if a string contains another string in Swift?

... other two involve explicitly using an NSString and the final one involves casting the String to an NSString By bridging, you'd get: var string = "hello Swift" if string.bridgeToObjectiveC().containsString("Swift") { println("YES") } By explicitly typing the string as an NSString, you'd get:...
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Function overloading by return type?

...le, in C++, the overload would likely have been resolvable using some ugly cast syntax. – Michael Burr Jan 14 '09 at 17:25 2 ...
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Nested using statements in C#

... Well they are all the same type if they are all IDisposable perhaps a cast would work? – jpierson Jan 17 '12 at 17:43 8 ...