Merge branch 'main' of https://gitea.zacksolutions.dev/Zakaria/letsGO

Homework_1/go.mod

@@ -0,0 +1,5 @@
+module letsgo/homework1
+
+go 1.27.0
+
+require golang.org/x/net v0.59.0 // indirect

Homework_1/main.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"strings"
+
+	"golang.org/x/net/html"
+)
+
+var raw = `
+<!DOCTYPE html>
+<html lang="en">
+<body>
+  <div class="node1">
+    <img src="/images/node1.png" alt="node one image">
+    <p>First node first child</p>
+  </div>
+  <div class="node2">
+    <img src="/images/node2.png" alt="node two image">
+    <h1>Second node second child</h1>
+  </div>
+  <div class="node3">
+    <a href="https://example.com">Third node second child</a>
+  </div>
+</body>
+</html>
+	`
+
+func main() {
+	doc, err := html.Parse(bytes.NewReader([]byte(raw)))
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Parsing failed: %s\n", err)
+		os.Exit(-1)
+	}
+
+	words, images := counterofwordsandimages(doc)
+	fmt.Printf("There are %d words and %d images\n", words, images)
+}
+
+func counterofwordsandimages(doc *html.Node) (int, int) {
+	var words, images int
+
+	visit(doc, &words, &images)
+
+	return words, images
+}
+
+func visit(n *html.Node, words, images *int) {
+	if n.Type == html.TextNode {
+		*words += len(strings.Fields(n.Data))
+	} else if n.Type == html.ElementNode && n.Data == "img" {
+		*images++
+	}
+	for c := n.FirstChild; c != nil; c = c.NextSibling {
+		visit(c, words, images)
+	}
+}

closures/go.mod

@@ -0,0 +1,3 @@
+module main
+
+go 1.27.0

closures/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+)
+
+func fib() func() int {
+	a, b := 0, 1
+	return func() int {
+		a, b = b, a+b
+		return b
+	}
+}
+
+func main() {
+	f := fib()
+	fmt.Println("This Fibonacci sequense < 10000")
+	for x := f(); x < 10000; x = f() {
+		fmt.Println(x)
+	}
+}

courses/1

@@ -1,19 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-const name = "Sara"
-
-love := "Kahlousha"
-number := 43900900
-
-func main() {
-
-	const world = "Mykids"
-	fmt.Println("Hello,", world)
-
-	fmt.Println("I love ", name)
-
-}

go.work

@@ -3,6 +3,7 @@ go 1.27.1
 use (
 	./Composite_Types
 	./For_If_Switch
+	./Homework_1
 	./courses
 	./formatIO
 	./functions

go.work.sum

@@ -0,0 +1,6 @@
+golang.org/x/crypto v0.57.0/go.mod h1:Fdz0i5U6CoizGwLda9DttjSk6qlZo25zYNtR+ycvuZA=
+golang.org/x/net v0.59.0 h1:5zfYln+w5XCxwrnMMJPufRgNoXEaGxl0wo5GqPXyues=
+golang.org/x/net v0.59.0/go.mod h1:2DA/G1UfVbCpQPeWTmMPGY7Cs2PkBkwu743bVX5PIVg=
+golang.org/x/sys v0.48.0/go.mod h1:hNLxWAXmnKAxqDtdwIYC4bM9oQPEecfsnNMuSxOs3og=
+golang.org/x/term v0.46.0/go.mod h1:+K02xbkittuwc0Am4abfA3Fc+XRGXkvBXNO88NCXPoc=
+golang.org/x/text v0.42.0/go.mod h1:ojzP1Z+2QtioaF8DTtO8K5q7JWVVYwZKenzujK0Zd0E=

pointers/pointers.go

@@ -6,7 +6,6 @@ import (
 )
 
 func main() {
-
 	var sum float64
 	var n int
 
@@ -27,5 +26,4 @@ func main() {
 	}
 	average := sum / float64(n)
 	fmt.Println("The average of the total numbers is:", average)
-
 }

slices/go.mod

@@ -0,0 +1,3 @@
+module main
+
+go 1.27.0

slices/main.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	var s []int
+	t := []int{}
+	u := make([]string, 5)
+	v := make([]string, 0, 5)
+
+	fmt.Printf("%d, %d, %T, %5t, %#[3]v\n", len(s), cap(s), s, s == nil)
+	fmt.Printf("%d, %d, %T, %5t, %#[3]v\n", len(t), cap(t), t, t == nil)
+	fmt.Printf("%d, %d, %T, %5t, %#[3]v\n", len(u), cap(u), u, u == nil)
+	fmt.Printf("%d, %d, %T, %5t, %#[3]v\n", len(v), cap(v), v, v == nil)
+
+	s = append(s, 1, 1)
+	fmt.Printf("%d, %d, %T, %5t, %#[3]v\n", len(s), cap(s), s, s == nil)
+
+	a := [...]int{1, 2, 3}
+
+	b := a[:1]
+
+	c := b[:2]
+
+	fmt.Printf("a[%p] = %v\n", &a, a)
+	fmt.Printf("b[%p] = %[1]v\n", b)
+	fmt.Printf("c[%p] = %[1]v\n", c)
+}

struct/go.mod

@@ -0,0 +1,3 @@
+module main
+
+go 1.27.1

struct/main.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type Response struct {
+	Page  int      `json:"page"`
+	Words []string `json:"words, omitempty"`
+}
+
+func main() {
+	r := &Response{Page: 1, Words: []string{"Leena", "Sami", "Sara", "Zaki"}}
+
+	j, _ := json.MarshalIndent(r, "", "   ")
+
+	fmt.Println(string(j))
+}