Functions can take parameters.

In the function declaration, a parameter is a name, followed by a colon, followed by a type. The function declaration can have no parameters, a single parameter, or a comma-delimited list of parameters.

When you call a function, you can pass the parameter values in same order in which they are declared.

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Assigning Function Results Chaining to Superclass Functions Default Parameter Values Expression Bodies Expression Bodies and Return Types Functions with Parameters Functions with Return Types Hello, World! (In a Function) Infix Functions Inheritance and Functions Inheritance and Overriding Functions Local Variables Named Parameter Values override is Transitive Spread Operator Spread Operator with Primitive Types Values for Varargs Varargs
Default Parameter Values Functions with Parameters Named Parameter Values
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