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Many data structures and databases implement immutable objects, effectively making their data structures append-only. Implementing an append-only data structure has many benefits, such as ensuring data consistency, improving performance, [6] and permitting rollbacks. [7] [8] The prototypical append-only data structure is the log file.
Because all PowerShell objects are .NET objects, they share a .ToString() method, which retrieves the text representation of the data in an object. In addition, PowerShell allows formatting definitions to be specified, so the text representation of objects can be customized by choosing which data elements to display, and in what manner.
List comprehension is a syntactic construct available in some programming languages for creating a list based on existing lists. It follows the form of the mathematical set-builder notation (set comprehension) as distinct from the use of map and filter functions.
The types of objects that can be iterated across (my_list in the example) are based on classes that inherit from the library class ITERABLE. The iteration form of the Eiffel loop can also be used as a boolean expression when the keyword loop is replaced by either all (effecting universal quantification ) or some (effecting existential ...
List comprehension; Object-oriented programming; Object-oriented constructors; Operators. Ternary conditional operator; ... Windows PowerShell Add-Member
In Windows Shell programming, the Windows Shell namespace is an organized tree-structured hierarchical representation that Windows Explorer facilitates to graphically present file system contents and other objects to the end user. Conceptually, the Shell namespace may be regarded as a larger and more inclusive version of the file system.
Component Object Model (COM) Distributed Component Object Model (DCOM) COM+; Microsoft Data Access Components (MDAC), including: OLE DB; Cryptographic API (CAPICOM) ActiveX Data Objects (ADO) Collaboration Data Objects (CDO); Windows Runtime (WinRT) Universal Windows Platform (UWP) DirectShow; DirectX. Direct2D; Direct3D; DirectDraw ...
PowerShell An object-oriented command-line shell. PowerShell can dynamically load .NET assemblies that were written in any CLI language. PowerShell itself uses a unique scripting syntax and uses curly-braces, similar to other C-based languages. RemObjects Mercury A Visual Basic .Net-based CLI language. Rust