Data commit

Task/Currying/Go/currying.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+        "fmt"
+        "math"
+)
+
+func PowN(b float64) func(float64) float64 {
+        return func(e float64) float64 { return math.Pow(b, e) }
+}
+
+func PowE(e float64) func(float64) float64 {
+        return func(b float64) float64 { return math.Pow(b, e) }
+}
+
+type Foo int
+
+func (f Foo) Method(b int) int {
+        return int(f) + b
+}
+
+func main() {
+        pow2 := PowN(2)
+        cube := PowE(3)
+
+        fmt.Println("2^8 =", pow2(8))
+        fmt.Println("4³ =", cube(4))
+
+        var a Foo = 2
+        fn1 := a.Method   // A "method value", like currying 'a'
+        fn2 := Foo.Method // A "method expression", like uncurrying
+
+        fmt.Println("2 + 2 =", a.Method(2)) // regular method call
+        fmt.Println("2 + 3 =", fn1(3))
+        fmt.Println("2 + 4 =", fn2(a, 4))
+        fmt.Println("3 + 5 =", fn2(Foo(3), 5))
+}