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In PowerShell, the Invoke-Expression Cmdlet serves the same purpose as the eval function in programming languages like JavaScript, PHP and Python. The Cmdlet runs any PowerShell expression that is provided as a command parameter in the form of a string and outputs the result of the specified expression.
The {{#invoke: params}} module is designed to be adopted by those templates that want to have a deep control of their parameters. It is particularly useful to variadic templates, to which it offers the possibility to count, list, map and propagate the parameters received without knowing their number in advance.
PowerShell is a task automation and configuration management program from Microsoft, consisting of a command-line shell and the associated scripting language.Initially a Windows component only, known as Windows PowerShell, it was made open-source and cross-platform on August 18, 2016, with the introduction of PowerShell Core. [9]
If a procedure has parameters, the part of its definition that specifies the parameters is called its parameter list. By contrast, the arguments are the expressions [6] supplied to the procedure when it is called, usually one expression matching one of the parameters. Unlike the parameters, which form an unchanging part of the procedure's ...
In PowerShell, all types of commands (cmdlets, functions, script files) inherently expose data about the names, types and valid value ranges/lists for each argument. This metadata is used by PowerShell to automatically support argument name and value completion for built-in commands/functions, user-defined commands/functions as well as for ...
Objections have been raised to both the syntax, how it's typed, and the semantics, how it works.. While easy to type, an important factor for an interactive command processor, the syntax has been criticized as awkward to nest, putting one command substitution inside another, because both the left and the right delimiters are the same. [2]
Instead of using standard .NET parameter types in P/Invoke method definitions (char[], string, etc.) it uses these interface classes in the P/Invoke function calls. For instance, if we consider the above example code, PInvoker would produce a .NET P/Invoke function accepting a .NET interface class wrapping the native char * pointer.
This module provides easy processing of arguments passed from #invoke.It is a meta-module, meant for use by other modules, and should not be called from #invoke directly (for a module directly invocable by templates you might want to have a look at {{#invoke:params}}).