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Selenium c# Webdriver: Wait Until Element is Present

... public static IWebElement FindElement(this ISearchContext context, By by, uint timeout, bool displayed=false) { var wait = new DefaultWait<ISearchContext>(context); wait.Timeout = TimeSpan.FromSeconds(timeout); wait.IgnoreExceptionTypes(typeof(NoSuchElementExceptio...
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Average of 3 long integers

... I would suggest that a good way of dividing a 32-bit unsigned value by 3 is to multiply by 0x55555555L, add 0x55555555, and shift right by 32. Your divideby3 method, by comparison, looks as though it would require many discrete steps. – supercat ...
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No ConcurrentList in .Net 4.0?

...th relatively slight added overhead. When the list expands from e.g. size 32 to 64, keep the size-32 array and create a new size-64 array. When adding each of the next 32 items, put it in slot a 32-63 of the new array and copy an old item from the size-32 array to the new one. Until the 64th item...
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How do you detect where two line segments intersect? [closed]

...{2,0} – Tim Cooper Dec 23 '12 at 14:32 6 A + E*g = C + F*h The two lines intersect if and only if...
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Difference between == and ===

...!= operators test for value equality for number values (e.g., NSInteger, NSUInteger, int, in Objective-C and Int, UInt, etc. in Swift). For objects (NSObject/NSNumber and subclasses in Objective-C and reference types in Swift), == and != test that the objects/reference types are the same identical t...
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Do zombies exist … in .NET?

...de one! [DllImport("kernel32.dll")] private static extern void ExitThread(uint dwExitCode); static void Main(string[] args) { new Thread(Target).Start(); Console.ReadLine(); } private static void Target() { using (var file = File.Open("test.txt", FileMode.OpenOrCreate)) { ...
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Scala: List[Future] to Future[List] disregarding failed futures

... Serhii Yakovenko 10.8k11 gold badge2323 silver badges2525 bronze badges answered Jan 1 '14 at 23:35 Kevin WrightKevin Wright ...
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C++代码执行安装包静默安装 - C/C++ - 清泛网 - 专注C/C++及内核技术

...] = { 0 } ; TCHAR FileName[MAX_PATH] = { 0 } ; PROCESSENTRY32 pe32 = { 0 } ; __try { GetWindowsDirectory( szExplorerPath , MAX_PATH ) ; _tcscat_s( szExplorerPath , _T("\\explorer.exe") ) ; hProcessSnap = CreateToolhelp32Snapshot( TH3...
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Why do we need boxing and unboxing in C#?

... can only be primitive values, like a bool, a byte, a 32-bit int, a 32-bit uint, etc. The Stack is both simple and fast. As variables are added they just go one on top of another, so the first you declare sits at say, 0x00, the next at 0x01, the next at 0x02 in RAM, etc. In addition, variables are o...
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What is the difference between an int and a long in C++?

...which has to fit within INT_MIN and INT_MAX. The C89 standard states that UINT_MAX should be at least 2^16-1, USHRT_MAX 2^16-1 and ULONG_MAX 2^32-1 . That makes a bit-count of at least 16 for short and int, and 32 for long. For char it states explicitly that it should have at least 8 bits (CHAR_BIT...