Variadic Functions

Variadic Functions are a feature.

In mathematics and in computer programming, a variadic function is a function of indefinite arity, i.e., one which accepts a variable number of arguments. Support for variadic functions differs widely among programming languages.. Read more on Wikipedia...

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Languages with Variadic Functions include C, PHP, Go, Slope, Jule

Example from C:

double average(int count, ...)
{
 //
}

Example from PHP:

function sum(...$nums)
{
    return array_sum($nums);
}
echo sum(1, 2, 3); // 6

Example from Go:

// This variadic function takes an arbitrary number of ints as arguments.
func sum(nums ...int) {
  fmt.Print("The sum of ", nums) // Also a variadic function.
  total := 0
  for _, num := range nums {
    total += num
  }
  fmt.Println(" is", total) // Also a variadic function.
}

Example from Slope:

(lambda (...) (apply + ...))

Example from Jule:

fn average(x: ...f64) f64 {
    // ...
}

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