How to use Ellipsis (...) in Golang?
Example
package main
import "fmt"
func demoEllipsis(arg ...int) {
fmt.Println("Length of Arguments: ",len(arg))
fmt.Printf("Arguments: %+v\n",arg)
}
func main() {
fmt.Println("\nExample I")
demoEllipsis([]int{1,2,3}...)
fmt.Println("\nExample II")
demoEllipsis(1,2,3,4,5)
fmt.Println("\nExample III")
demoEllipsis()
fmt.Println("\nDynamic Array")
intArray := [...] int {1,2,3,4,5,6,7}
fmt.Println("Length: ",len(intArray))
fmt.Println("Capacity: ",cap(intArray))
fmt.Println(intArray)
fmt.Println("\nInterface")
interfaceEx := []interface{}{"Australia", "Canada", "Japan"}
fmt.Println(interfaceEx...)
}
Output
Example I
Length of Arguments: 3
Arguments: [1 2 3]
Example II
Length of Arguments: 5
Arguments: [1 2 3 4 5]
Example III
Length of Arguments: 0
Arguments: []
Dynamic Array
Length: 7
Capacity: 7
[1 2 3 4 5 6 7]
Interface
Australia Canada Japan
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