Add enumerate

py/lambda.go

@@ -75,3 +75,12 @@ func Range(args...int) ([]int) {
 	}
 	return l
 }
+
+func Enumerate(iter interface{}) interface{} {
+	viter := reflect.ValueOf(iter)
+	enum := make([][]interface{}, viter.Len())
+    for i:=0; i < viter.Len(); i++ {
+        enum[i] = []interface{}{i, viter.Index(i).Interface()}
+    }
+    return enum
+}

test.go

@@ -22,6 +22,7 @@ func main(){
 		Min([]float64{3.14159, 23.14069, 2.71828}),
 		Max(-3,24,1,-23,31),
 		Join(", ", []interface{}{2, -2.33, true, "hi"}),
+		Enumerate([]int{1, 1, 2, 42, 24024, 701149020}),
 		Input("Say hi! "),
 	}
 	fmt.Println(Join("\n",test))