How Can I Create a Go Function with a Variable Number of Arguments?

Variadic Functions in Golang

Question:

Is there a way to define a Go function that accepts an arbitrary number of arguments?

Solution:

Yes, Go supports variadic functions, which allow you to pass a variable number of arguments to a function. To define a variadic function, use the ellipsis (...) syntax followed by the type of the arguments you want to accept.

For example, here is a variadic function named Add that can accept any number of int arguments:

func Add(num1... int) int {
    sum := 0
    for _, num := range num1 {
        sum += num
    }
    return sum
}

You can call this function with any number of arguments, like this:

fmt.Println(Add(1, 3, 4, 5)) // Output: 13

Note:

In the example above, we used "..." (ellipsis) followed by "int" to indicate that the function accepts a variable number of int arguments. The variable named "num1" then represents a slice of integers, which contains all the arguments passed to the function.

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