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In software engineering, the delegation pattern is an object-oriented design pattern that allows object composition to achieve the same code reuse as inheritance. In delegation, an object handles a request by delegating to a second object (the delegate). The delegate is a helper object, but with the original context.
Translating the implicit this into an explicit parameter, the call (in B, with a a delegate) a.foo() translates to A.foo(b), using the type of a for method resolution, but the delegating object b for the this argument. Using inheritance, the analogous code (using capital letters to emphasize that resolution is based on classes, not objects) is:
As a precursor to the lambda functions introduced in C# 3.0, C#2.0 added anonymous delegates. These provide closure-like functionality to C#. [3] Code inside the body of an anonymous delegate has full read/write access to local variables, method parameters, and class members in scope of the delegate, excepting out and ref parameters. For example:-
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Realpolitik (/ r eɪ ˈ ɑː l p ɒ l ɪ ˌ t iː k / ray-AHL-po-lih-teek German: [ʁeˈaːlpoliˌtiːk] ⓘ; from German real 'realistic, practical, actual' and Politik 'politics') is the approach of conducting diplomatic or political policies based primarily on considerations of given circumstances and factors, rather than strictly following ideological, moral, or ethical premises.
A delegate is a person selected to represent a group of people in some political assembly of the United States. There are various types of delegates elected to different political bodies. In the United States Congress delegates are elected to represent the interests of a United States territory and its citizens or nationals. In addition ...
This is a feature of C# 9.0. Similar to in scripting languages, top-level statements removes the ceremony of having to declare the Program class with a Main method. Instead, statements can be written directly in one specific file, and that file will be the entry point of the program.
The Stack: On Software and Sovereignty was published by MIT Press in late 2015. [22] The book challenges traditional ideas of sovereignty centered around the nation-state and develops a theory of geopolitics that accounts for sovereignty in terms of planetary-scale computation at various scales. [23]