Исходники и презентации

lessons/functions/high_order_function/main.go

@@ -0,0 +1,22 @@
+package main
+
+import "fmt"
+
+func forEach(data []int, fn func(int) int) []int {
+	newData := make([]int, 0, len(data))
+	for _, value := range data {
+		newData = append(newData, fn(value))
+	}
+
+	return newData
+}
+
+func main() {
+	var data = []int{1, 2, 3, 4}
+	var newData = forEach(data, func(value int) int {
+		return (value * value)
+	})
+
+	fmt.Println(data)
+	fmt.Println(newData)
+}