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functions.go
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functions.go
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package main
import "fmt"
/*
function
func()
func(x int) int
func(a, _ int, z float32) bool
func(a, b int, z float32) (bool)
func(prefix string, values ...int)
func(a, b int, z float64, opt ...interface{}) (success bool)
func(int, int, float64) (float64, *[]int)
func(int, int, float64) (*[]int, error)
func(n int) func(p *T)
*/
func returnOne(a, b int) int {
return a + b
}
func returnTwo(a, b int) (int, int) {
return a, b
}
func variadic(nums ...interface{}) int {
var total int
fmt.Println(nums)
for _, value := range nums {
total += value.(int)
}
return total
}
func main() {
// fixed function, variadic function, one return, two return,
fmt.Println(returnOne(1, 3))
fmt.Println(returnTwo(1, 3))
nums := []interface{}{1, 2, 3}
fmt.Println(variadic(1, 2, 3))
fmt.Println(variadic(nums...))
}