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Is there a performance impact when calling ToList()?

...uge list, copying chunks of memory is quite a fast operation to perform. Handy tip, As vs To You'll notice in LINQ there are several methods that start with As (such as AsEnumerable()) and To (such as ToList()). The methods that start with To require a conversion like above (ie. may impact perform...
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How to modify a text file?

I'm using Python, and would like to insert a string into a text file without deleting or copying the file. How can I do that? ...
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How to parse a string to an int in C++?

...at's the C++ way of parsing a string (given as char *) into an int? Robust and clear error handling is a plus (instead of returning zero ). ...
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Internet Explorer 11 detection

...t && !!document.documentMode; // true on IE11 // false on Edge and other IEs/browsers. Original Answer In order to check Ie11 , you can use this : ( tested) (or run this) !(window.ActiveXObject) && "ActiveXObject" in window I have all VMS of IE : Notice : this w...
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How does the HyperLogLog algorithm work?

I've been learning about different algorithms in my spare time recently, and one that I came across which appears to be very interesting is called the HyperLogLog algorithm - which estimates how many unique items are in a list. ...
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BackgroundWorker vs background Thread

...a form that has an infinite (while(true)) loop. In this loop I use WaitHandle.WaitAny to keep the thread snoozing until something of interest happens. One of the event handles I wait on is a " StopThread " event so that I can break out of the loop. This event is signaled when from my overridden ...
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What is output buffering?

What is output buffering and why is one using it in PHP? 7 Answers 7 ...
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How can I make an EXE file from a Python program? [duplicate]

...A .py to .exe converter using a simple graphical interface built using Eel and PyInstaller in Python. py2exe is probably what you want, but it only works on Windows. PyInstaller works on Windows and Linux. Py2app works on the Mac. ...
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Match whitespace but not newlines

... Perl versions 5.10 and later support subsidiary vertical and horizontal character classes, \v and \h, as well as the generic whitespace character class \s The cleanest solution is to use the horizontal whitespace character class \h. This will ...
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Best Practice for Exception Handling in a Windows Forms Application?

...ication. I've read a few C# books now so I've got a relatively good understanding of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translate the basic concepts into a good exception-handling model in my app...