Writing and Using Functions in Scala
In Scala, functions are first-class citizens that can be defined, assigned to variables, and passed as arguments to other functions. Functions can be created using the def keyword or as anonymous functions (lambdas). Scala's type inference and concise syntax make defining and using functions straightforward. Additionally, higher-order functions, which take other functions as parameters or return them, are a powerful feature of Scala. Understanding and utilizing functions effectively can lead to cleaner, more maintainable code and facilitate functional programming paradigms.
This example demonstrates defining functions using def and anonymous functions, and passing them to a higher-order function. It includes defining add and multiply functions and using them with the exec higher-order function. The example also shows how to pass an anonymous function directly.
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