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How does having a dynamic variable affect performance?

...hat just has the metadata analyzer, the semantic analyzer for expressions, and an emitter that emits Expression Trees instead of IL. The metadata analyzer uses Reflection to determine the type of the object in d1, and then passes that to the semantic analyzer to ask what happens when such an objec...
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How is “=default” different from “{}” for default constructor and destructor?

...om simply doing {}. With the latter, the function becomes "user-provided". And that changes everything. This is a trivial class by C++11's definition: struct Trivial { int foo; }; If you attempt to default construct one, the compiler will generate a default constructor automatically. Same goes...
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Definition of a Balanced Tree

... tree for me. I have that "a tree is balanced if each sub-tree is balanced and the height of the two sub-trees differ by at most one. ...
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Can a JSON value contain a multiline string

...in your string. However you may encode it using whatever combination of \n and \r you require. The JSONLint tool confirms that your JSON is invalid. Update: And if you want to write newlines inside your JSON syntax without actually including newlines in the data, then you're even doubly out of l...
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In C/C++ what's the simplest way to reverse the order of bits in a byte?

...e, I'm curious as to what is the "simplest" for a developer to implement. And by reversing I mean: 35 Answers ...
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Why is “if not someobj:” better than “if someobj == None:” in Python?

... the object has a __nonzero__ special method (as do numeric built-ins, int and float), it calls this method. It must either return a bool value which is then directly used, or an int value that is considered False if equal to zero. Otherwise, if the object has a __len__ special method (as do contain...
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Are there any Java method ordering conventions? [closed]

... the methods are pretty jumbled up in terms of utility public/private etc. and I want to order them in a sensible way. Is there a standard way of doing this? E.g. normally fields are listed before methods, the constructor(s) are listed before other methods, and getters/setters last; what about the r...
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Does functional programming replace GoF design patterns?

Since I started learning F# and OCaml last year, I've read a huge number of articles which insist that design patterns (especially in Java) are workarounds for the missing features in imperative languages. One article I found makes a fairly strong claim : ...
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Calculate last day of month in JavaScript

...efox 2.0.0.17: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Firefox 3.0.3: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Google Chrome 0.2.149.30: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Safari for Windows 3.1.2: Thu ...
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What is the direction of stack growth in most modern systems?

I am preparing some training materials in C and I want my examples to fit the typical stack model. 9 Answers ...