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

While asking this question , I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks. ...
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How to replace all occurrences of a character in string?

... to replace all occurrences of a character with another character in std::string ? 15 Answers ...
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Format a Go string without printing?

Is there a simple way to format a string in Go without printing the string? 7 Answers ...
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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?

... The reason for first one working: From MSDN: In string concatenation operations,the C# compiler treats a null string the same as an empty string, but it does not convert the value of the original null string. More information on the + binary operator: The binary + operat...
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How can you encode a string to Base64 in JavaScript?

I have a PHP script that can encode a PNG image to a Base64 string. 26 Answers 26 ...
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Best way to reverse a string

I've just had to write a string reverse function in C# 2.0 (i.e. LINQ not available) and came up with this: 48 Answers ...
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How can I do a case insensitive string comparison?

... not the best practice in .NET framework (4 & +) to check equality String.Compare(x.Username, (string)drUser["Username"], StringComparison.OrdinalIgnoreCase) == 0 Use the following instead String.Equals(x.Username, (string)drUser["Username"], StringC...
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How to get device make and model on iOS?

...e currentdevice is? I know it's possible to get the model through NSString *deviceType = [[UIDevice currentDevice] model]; which will just return whether I have an "iPhone" or an "iPod", BUT I was wondering if it's possible to detect/know if I have an iPhone 3GS vs. and iPhone 4 vs. an iPho...
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How to convert a char array back to a string?

...ry minimal. Note however, that this is a very unusual situation: Because String is handled specially in Java, even "foo" is actually a String. So the need for splitting a String into individual chars and join them back is not required in normal code. Compare this to C/C++ where "foo" you have a b...
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Why can't strings be mutable in Java and .NET?

Why is it that they decided to make String immutable in Java and .NET (and some other languages)? Why didn't they make it mutable? ...