XSLT is considered a functional programming language. Define functional programming, and describe at least three of the key design principles of functional programming languages.

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XSLT is an example of functional programming, which relies on the evaluation of functions and expressions, rather than on the sequential execution of commands.?Functional programming languages such as XSLT are instead designed around the following principles:The main program consists entirely of functions with well-defined inputs.The results of the program are defined in terms of outputs from functions.When a variable is defined, its definition cannot be changed.Because the program consists only of function calls, the order of the execution is irrelevant.The important overall principle to keep in mind with functional programs is to think of tasks in terms of functions rather than loops and assignment statements.??? 

Computer Science & Information Technology

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