Merge pull request #1 from 0bvim/feat/section13

feat/section13

Author: 0bvim

src/udemy/go_ted/section13/slice_append.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"fmt"
+	"slices"
+)
+
+func main() {
+	xi := []int{42, 43, 44}
+	fmt.Println(xi)
+	fmt.Println("----------------------")
+
+	// can appende variadic values
+	xi = append(xi, 12, 13, 14, 15, 555, 111, 222)
+	fmt.Println(xi)
+	fmt.Println("----------------------")
+
+	xi = append(xi, 6943, 234, 2349)
+	fmt.Println(xi)
+	fmt.Println("----------------------")
+
+	// print len exclusive (one way)
+	fmt.Println(xi[len(xi)-1])
+	fmt.Println("----------------------")
+
+	// [inclusive:exclusive]
+	fmt.Printf("inc/exc xi: %#v\n", xi[0:4])
+	fmt.Println("----------------------")
+
+	// [exclusive]
+	fmt.Printf("exclusive xi: %#v\n", xi[:7])
+	fmt.Println("----------------------")
+
+	// [inclusive]
+	fmt.Printf("inclusive xi: %#v\n", xi[7:])
+	fmt.Println("----------------------")
+
+	// [all] can be just variable name too
+	fmt.Printf("all xi: %#v\n", xi[:])
+	fmt.Println("----------------------")
+
+	// to delete or remove
+	xi = append(xi[:4], xi[5:]...)
+	fmt.Printf("deleting xi: %v\n", xi)
+	fmt.Println("----------------------")
+
+	// copy slice
+	xiCopy := make([]int, len(xi))
+	copy(xiCopy, xi)
+	fmt.Println("copy xi:", xiCopy)
+	fmt.Println("----------------------")
+
+	// reverse slice
+	slices.Reverse(xi)
+	fmt.Printf("reverse xi: %v\n", xi)
+	fmt.Println("----------------------")
+
+	// sort slice
+	slices.Sort(xi)
+	fmt.Printf("sorted xi: %v\n", xi)
+	fmt.Println("----------------------")
+}

src/udemy/go_ted/section13/slice_index.go

@@ -0,0 +1,24 @@
+package main
+
+import "fmt"
+
+func main() {
+	xs := []string{"Almond Biscotti Café", "Banana Pudding ", "Balsamic Strawberry (GF)"}
+	fmt.Println(xs)
+	fmt.Printf("Type of variable\t%T\n", xs)
+
+	for _, v := range xs {
+		fmt.Printf("%v\n", v)
+	}
+
+	fmt.Println("----------------------")
+	fmt.Println(xs[0])
+	fmt.Println(xs[1])
+	fmt.Println(xs[2])
+	fmt.Println("len of slice", len(xs))
+
+	fmt.Println("----------------------")
+	for i := 0; i < len(xs); i++ {
+		fmt.Println(xs[i])
+	}
+}

src/udemy/go_ted/section13/slice_make.go

@@ -0,0 +1,23 @@
+package main
+
+import "fmt"
+
+func main() {
+	si := []string{"a", "b", "c"}
+	fmt.Printf("si: %v\n", si)
+
+	xi := make([]int, 0, 10)
+
+	fmt.Printf("xi: %v\n", xi)
+	fmt.Printf("len(xi): %v\n", len(xi))
+	fmt.Printf("cap(xi): %v\n", cap(xi))
+	xi = append(xi, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
+	fmt.Printf("xi: %v\n", xi)
+
+	fmt.Println("----------------")
+
+	xi = append(xi, 11, 12, 13, 14, 15)
+	fmt.Printf("xi: %v\n", xi)
+	fmt.Printf("len(xi): %v\n", len(xi))
+	fmt.Printf("cap(xi): %v\n", cap(xi))
+}

src/udemy/go_ted/section13/slice_multidimensional.go

@@ -0,0 +1,19 @@
+package main
+
+import "fmt"
+
+func main() {
+	// slices in slices
+	jb := []string{"James", "Bond", "Martini", "Chocolate"}
+	jm := []string{"Jenny", "Moneypenny", "Guiness", "Wolverine Tracks"}
+	fmt.Printf("jb: %v\n", jb)
+	fmt.Printf("jm: %v\n", jm)
+
+	xp := [][]string{jb, jm}
+	xxp := [][]string{jb, jm}
+	xxxp := [][][]string{xp, xxp}
+	fmt.Printf("xxp: %v\n", xxp)
+	fmt.Printf("xp: %v\n", xp)
+	fmt.Printf("xxxp: %v\n", xxxp)
+
+}

src/udemy/go_ted/section13/slices.go

@@ -0,0 +1,26 @@
+package main
+
+import "fmt"
+
+func main() {
+	xs := []string{"Almond Biscotti Café", "Banana Pudding ", "Balsamic Strawberry (GF)", "Bittersweet Chocolate (GF)", "Blueberry Pancake (GF)", "Bourbon Turtle (GF)", "Browned Butter Cookie Dough", "Chocolate Covered Black Cherry (GF)", "Chocolate Fudge Brownie", "Chocolate Peanut Butter (GF)", "Coffee (GF)", "Cookies & Cream", "Fresh Basil (GF)", "Garden Mint Chip (GF)", "Lavender Lemon Honey (GF)", "Lemon Bar", "Madagascar Vanilla (GF)", "Matcha (GF)", "Midnight Chocolate Sorbet (GF, V)", "Non-Dairy Chocolate Peanut Butter (GF, V)", "Non-Dairy Coconut Matcha (GF, V)", "Non-Dairy Sunbutter Cinnamon (GF, V)", "Orange Cream (GF) ", "Peanut Butter Cookie Dough", "Raspberry Sorbet (GF, V)", "Salty Caramel (GF)", "Slate Slate Different", "Strawberry Lemonade Sorbet (GF, V)", "Vanilla Caramel Blondie", "Vietnamese Cinnamon (GF)", "Wolverine Tracks (GF)"}
+	// print entire values in variable at once
+	fmt.Println(xs)
+	// %T -> show the type of variable
+	fmt.Printf("Type of variable\t%T\n", xs)
+
+	// 'i' is the counter
+	// v stands for value and will receive each item in slice to be manipulated
+	for i, v := range xs {
+		// to print index and value
+		fmt.Printf("%v - %v\n", i, v)
+	}
+	fmt.Println()
+
+	// new values for the follwing test
+	xs = []string{"Al", "Mon", "De", "Ga"}
+	// you can use too blank identifier ('_')to ignore index counter and just get the value
+	for _, v := range xs {
+		fmt.Printf("%v\n", v)
+	}
+}

src/udemy/go_ted/section13/underying_array.go

@@ -0,0 +1,13 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := []int{1, 2, 3, 4, 5, 6}
+	b := make([]int, len(a))
+	copy(b, a)
+	b[0] = 7
+	fmt.Printf("b: %v\n", b)
+	fmt.Printf("a: %v\n", a)
+
+}