.-

go/01-basics/maps.go

@@ -1,41 +1,41 @@
-package main
+package main
-
+
-import (
+import (
-    "fmt"
+    "fmt"
-    "maps"
+    "maps"
-)
+)
-
+
-func main() {
+func main() {
-
+
-    m := make(map[string]int)
+    m := make(map[string]int)
-
+
-    m["k1"] = 7
+    m["k1"] = 7
-    m["k2"] = 13
+    m["k2"] = 13
-
+
-    fmt.Println("map:", m)
+    fmt.Println("map:", m)
-
+
-    v1 := m["k1"]
+    v1 := m["k1"]
-    fmt.Println("v1:", v1)
+    fmt.Println("v1:", v1)
-
+
-    v3 := m["k3"]
+    v3 := m["k3"]
-    fmt.Println("v3:", v3)
+    fmt.Println("v3:", v3)
-
+
-    fmt.Println("len:", len(m))
+    fmt.Println("len:", len(m))
-
+
-    delete(m, "k2")
+    delete(m, "k2")
-    fmt.Println("map:", m)
+    fmt.Println("map:", m)
-
+
-    clear(m)
+    clear(m)
-    fmt.Println("map:", m)
+    fmt.Println("map:", m)
-
+
-    _, prs := m["k2"]
+    _, prs := m["k2"]
-    fmt.Println("prs:", prs)
+    fmt.Println("prs:", prs)
-
+
-    n := map[string]int{"foo": 1, "bar": 2}
+    n := map[string]int{"foo": 1, "bar": 2}
-    fmt.Println("map:", n)
+    fmt.Println("map:", n)
-
+
-    n2 := map[string]int{"foo": 1, "bar": 2}
+    n2 := map[string]int{"foo": 1, "bar": 2}
-    if maps.Equal(n, n2) {
+    if maps.Equal(n, n2) {
-        fmt.Println("n == n2")
+        fmt.Println("n == n2")
-    }
+    }
 }

go/01-basics/slices.go

@@ -1,58 +1,58 @@
-package main
+package main
-
+
-import (
+import (
-    "fmt"
+    "fmt"
-    "slices"
+    "slices"
-)
+)
-
+
-func main() {
+func main() {
-
+
-    var s []string
+    var s []string
-    fmt.Println("uninit:", s, s == nil, len(s) == 0)
+    fmt.Println("uninit:", s, s == nil, len(s) == 0)
-
+
-    s = make([]string, 3)
+    s = make([]string, 3)
-    fmt.Println("emp:", s, "len:", len(s), "cap:", cap(s))
+    fmt.Println("emp:", s, "len:", len(s), "cap:", cap(s))
-
+
-    s[0] = "a"
+    s[0] = "a"
-    s[1] = "b"
+    s[1] = "b"
-    s[2] = "c"
+    s[2] = "c"
-    fmt.Println("set:", s)
+    fmt.Println("set:", s)
-    fmt.Println("get:", s[2])
+    fmt.Println("get:", s[2])
-
+
-    fmt.Println("len:", len(s))
+    fmt.Println("len:", len(s))
-
+
-    s = append(s, "d")
+    s = append(s, "d")
-    s = append(s, "e", "f")
+    s = append(s, "e", "f")
-    fmt.Println("apd:", s)
+    fmt.Println("apd:", s)
-
+
-    c := make([]string, len(s))
+    c := make([]string, len(s))
-    copy(c, s)
+    copy(c, s)
-    fmt.Println("cpy:", c)
+    fmt.Println("cpy:", c)
-
+
-    l := s[2:5]
+    l := s[2:5]
-    fmt.Println("sl1:", l)
+    fmt.Println("sl1:", l)
-
+
-    l = s[:5]
+    l = s[:5]
-    fmt.Println("sl2:", l)
+    fmt.Println("sl2:", l)
-
+
-    l = s[2:]
+    l = s[2:]
-    fmt.Println("sl3:", l)
+    fmt.Println("sl3:", l)
-
+
-    t := []string{"g", "h", "i"}
+    t := []string{"g", "h", "i"}
-    fmt.Println("dcl:", t)
+    fmt.Println("dcl:", t)
-
+
-    t2 := []string{"g", "h", "i"}
+    t2 := []string{"g", "h", "i"}
-    if slices.Equal(t, t2) {
+    if slices.Equal(t, t2) {
-        fmt.Println("t == t2")
+        fmt.Println("t == t2")
-    }
+    }
-
+
-    twoD := make([][]int, 3)
+    twoD := make([][]int, 3)
-    for i := range 3 {
+    for i := range 3 {
-        innerLen := i + 1
+        innerLen := i + 1
-        twoD[i] = make([]int, innerLen)
+        twoD[i] = make([]int, innerLen)
-        for j := range innerLen {
+        for j := range innerLen {
-            twoD[i][j] = i + j
+            twoD[i][j] = i + j
-        }
+        }
-    }
+    }
-    fmt.Println("2d: ", twoD)
+    fmt.Println("2d: ", twoD)
 }