A function in programming can be thought of as a recipe in cooking. Just like a recipe provides a set of instructions for preparing a dish, a function provides a set of instructions for performing a specific task in a program.
Just like a recipe can be followed multiple times to create multiple servings of a dish, a function can be called multiple times to perform its task multiple times within a program. Just like a recipe can take in certain ingredients and produce a finished dish, a function can take in certain input values (also known as arguments) and produce a certain output (also known as the return value).
Just like a recipe can be modified by adding or removing ingredients or changing the amounts of certain ingredients, a function can be modified by changing the instructions it contains or the arguments it takes in.
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