push all exercices

ch6/1/ch6_1.go

@@ -0,0 +1,22 @@
+package main
+
+import "fmt"
+
+type Person struct {
+	FirstName string
+	LastName  string
+	Age       int
+}
+
+func MakePerson(firstName, lastName string, age int) Person {
+	return Person{firstName, lastName, age}
+}
+
+func MakePersonPointer(firstName, lastName string, age int) *Person {
+	return &Person{firstName, lastName, age}
+}
+
+func main() {
+	fmt.Println(MakePerson("Ivan", "Ivanov", 21))
+	fmt.Println(*MakePersonPointer("Peter", "Petrov", 22))
+}

ch6/1/go.mod

@@ -0,0 +1,3 @@
+module ch6_1
+
+go 1.25.0

ch6/2/ch6_2.go

@@ -0,0 +1,30 @@
+package main
+
+import "fmt"
+
+func UpdateSlice(strSlice []string, cmpStr string) {
+	sliceSize := len(strSlice)
+	for i := 0; i < sliceSize; i++ {
+		if cmpStr == strSlice[i] {
+			strSlice = strSlice[:i]
+			break
+		}
+	}
+	fmt.Println(strSlice)
+}
+
+func GrowSlice(strSlice []string, appStr string) {
+	strSlice = append(strSlice, appStr)
+	fmt.Println(strSlice)
+}
+
+func main() {
+	strSlice := []string{"aaa", "bbb", "ccc", "ddd"}
+	fmt.Println("Before function UpdateSlice: ", strSlice)
+	UpdateSlice(strSlice, "ccc")
+	fmt.Println("After function UpdateSlice: ", strSlice)
+	strSlice = []string{"aaa", "bbb", "ccc", "ddd"}
+	fmt.Println("Before function GrowSlice: ", strSlice)
+	GrowSlice(strSlice, "eee")
+	fmt.Println("After function GrowSlice: ", strSlice)
+}

ch6/2/go.mod

@@ -0,0 +1,3 @@
+module ch6_2
+
+go 1.25.0

ch6/3/ch6_3.go

@@ -0,0 +1,20 @@
+package main
+
+import "fmt"
+
+type Person struct {
+	name string
+	age  int
+}
+
+func MakePerson(name string, age int) Person {
+	return Person{name, age}
+}
+
+func main() {
+	personSlice := make([]Person, 0, 512)
+	for i := 0; i < 10_000_000; i++ {
+		personSlice = append(personSlice, MakePerson("aaa", i))
+	}
+	fmt.Println(personSlice[:100])
+}

ch6/3/go.mod

@@ -0,0 +1,3 @@
+module ch6_3
+
+go 1.25.0