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What exactly do “u” and “r” string flags do, and what are raw string literals?

...slashes are literal backslashes, not part of escape codes. You can try to convert a Unicode string to an old string using the str() function, but if there are any unicode characters that cannot be represented in the old string, you will get an exception. You could replace them with question marks f...
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How to compare arrays in JavaScript?

......" well, then you should note there ARE loops. First recursive loop that converts Array to string and second, that compares two strings. So this method is faster than use of string. I believe that larger amounts of data should be always stored in arrays, not in objects. However if you use objects,...
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Confusion between factor levels and factor labels

...reatment A etc. The factor function will look for the values a, b and c, convert them to numerical factor classes, and add the label values to the level attribute of the factor. This attribute is used to convert the internal numerical values to the correct labels. But as you see, there is no label...
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How does Task become an int?

...e without the await - with T foo = someTaskT; you'd get "Cannot implicitly convert type Task<T> to T" - in the same way I argue that it would make more sense to have a keyword for the inverse (wrapping in Task<T>). I'm all for removing fluff but in this case I think it provides an unnece...
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Sequence contains more than one element

...c int GetPackage(int id,int emp) { int getpackages=Convert.ToInt32(EmployerSubscriptionPackage.GetAllData().Where(x => x.SubscriptionPackageID ==`enter code here` id && x.EmployerID==emp ).FirstOrDefault().ID); return getpackages; } 1...
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Concept of void pointer in C programming

... In C, a void * can be converted to a pointer to an object of a different type without an explicit cast: void abc(void *a, int b) { int *test = a; /* ... */ This doesn't help with writing your function in a more generic way, though. You...
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Ensuring json keys are lowercase in .NET

... a custom contract resolver for this. The following contract resolver will convert all keys to lowercase: public class LowercaseContractResolver : DefaultContractResolver { protected override string ResolvePropertyName(string propertyName) { return propertyName.ToLower(); } } ...
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What is the difference between char array and char pointer in C?

...s provided where one of type char* is expected, the compiler automatically converts the array into a pointer to its first element. Your example function printSomething expects a pointer, so if you try to pass an array to it like this: char s[10] = "hello"; printSomething(s); The compiler pretend...
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Why isn't vector a STL container?

... &x = b[5]; // that's what really happens bool y = b[5]; // implicitly converted to bool assert(b[5] == false); // converted to bool assert(b[6] == b[7]); // bool operator==(const reference &, const reference &); b[5] = true; // assignment on reference assert(b[5] == true); // and actua...
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Django Rest Framework File Upload

... very helpful thank you a lot. But i don't understand, why you are converting dict data to QueryDict in parser? In my case in Django, normal dictionary data work perfectly without converting. – Metehan Gülaç Apr 12 at 20:15 ...