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Why would one use nested classes in C++?

... BOX, BAG, CRATE }; Product(ProductType t, ProductBoxType b, String name); // the rest of the class: fields, methods }; One then will call: Product p(Product::FANCY, Product::BOX); But when looking at code completion proposals for Product::, one will often get all the possibl...
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What's the difference between an object initializer and a constructor?

...nstances of one or more other classes. For example see File.Create Method (String) (and its overloads) which creates a FileStream object. – DavidRR Jan 17 '18 at 18:13 add a c...
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Insert code into the page context using a content script

...n('\n'); Method 2b: Using a function For a big chunk of code, quoting the string is not feasible. Instead of using an array, a function can be used, and stringified: var actualCode = '(' + function() { // All code is executed in a local scope. // For example, the following does NOT overwrit...
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Storing money in a decimal column - what precision and scale?

...es are stored using an integer for the smallest unit. class Currency { String code; // eg "USD" int value; // eg 2500 boolean converted; } class Price { Currency grossValue; Currency netValue; Tax taxRate; } In the database, the values are stored as a string in ...
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Difference between \w and \b regular expression meta characters

...tions that qualify as word boundaries: Before the first character in the string, if the first character is a word character. After the last character in the string, if the last character is a word character. Between two characters in the string, where one is a word character and the other is not a...
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How can I clear previous output in Terminal in Mac OS X?

...hould work for desktop environments in macOS, FreeBSD, Linux etc. Note the extra \33c is for clearing the extra \e[3J literal in non-macOS (basically for Linux/FreeBSD, we only need printf '\33c'). – vulcan raven Aug 8 '19 at 16:16 ...
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Print list without brackets in a single row

... If some elements in names aren't strings, use print(', '.join(map(str,name))) instead. – Anonymous Dec 1 '19 at 9:43 ...
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iOS: how to perform a HTTP POST request?

...nd/or HTTP headers, use NSMutableURLRequest with (void)setHTTPMethod:(NSString *)method (void)setHTTPBody:(NSData *)data (void)setValue:(NSString *)value forHTTPHeaderField:(NSString *)field Send your request in 2 ways using NSURLConnection: Synchronously: (NSData *)sendSynchronousRequest:(NSU...
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Why Response.Redirect causes System.Threading.ThreadAbortException?

...ew Context) { User User = new User(); if (String.IsNullOrEmpty(model.EmailAddress)) ValidLogin = false; // no email address was entered else User = Db.FirstOrDefault(x => x.EmailAddress == model.EmailAddress); ...
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Why not abstract fields?

...ised in its constructor (untested code): abstract class Base { final String errMsg; Base(String msg) { errMsg = msg; } abstract String doSomething(); } class Sub extends Base { Sub() { super("Sub message"); } String doSomething() { return e...