fix: coding style and file format for chapter 7.

eBook/exercises/chapter_7/map_function.go

@@ -1,32 +1,32 @@
-package main
-
-import "fmt"
-
-func main() {
-	list := []int{0, 1, 2, 3, 4, 5, 6, 7}
-	mf := func(i int) int {
-		return i * 10
-	}
-	/*
-	result := mapFunc(mf, list)
-	for _, v := range result {
-		fmt.Println(v)
-	}
-	*/
-	println()
-	// shorter:
-	fmt.Printf("%v", mapFunc(mf, list) )
-}
-
-func mapFunc(mf func(int) int, list []int) ([]int) {
-	result := make([]int, len(list))
-	for ix, v := range list {
-		result[ix] = mf(v)
-	}
-	/*
-	for ix := 0; ix<len(list); ix++ {
-		result[ix] = mf(list[ix])
-	}
-	*/
-	return result
-}
+package main
+
+import "fmt"
+
+func main() {
+	list := []int{0, 1, 2, 3, 4, 5, 6, 7}
+	mf := func(i int) int {
+		return i * 10
+	}
+	/*
+		result := mapFunc(mf, list)
+		for _, v := range result {
+			fmt.Println(v)
+		}
+	*/
+	println()
+	// shorter:
+	fmt.Printf("%v", mapFunc(mf, list))
+}
+
+func mapFunc(mf func(int) int, list []int) []int {
+	result := make([]int, len(list))
+	for ix, v := range list {
+		result[ix] = mf(v)
+	}
+	/*
+		for ix := 0; ix<len(list); ix++ {
+			result[ix] = mf(list[ix])
+		}
+	*/
+	return result
+}