User Defined Function Types in Golang
Golang also support to define our own function types.
The modified version of above program with function types as below:
Example
package main
import "fmt"
type First func(int) int
type Second func(int) First
func squareSum(x int) Second {
return func(y int) First {
return func(z int) int {
return x*x + y*y + z*z
}
}
}
func main() {
// 5*5 + 6*6 + 7*7
fmt.Println(squareSum(5)(6)(7))
}
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