Init.

.gitignore

@@ -0,0 +1 @@
+exe

go.mod

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+module github.com/surdeus/godat
+
+go 1.19

mkconfig

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+MKSHELL = sh
+<$(MKINCDIR)/config
+WATCH_FILES = src tmpl
+CC = cc
+

mkfile

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+<mkconfig
+<$MKINCDIR/gobuild
+
+<$MKINCDIR/w3/run-dev
+

src/cmd/test/main.go

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+package main
+
+import (
+	"github.com/surdeus/godat/src/mapx"
+	"fmt"
+)
+
+func main() {
+	m := map[string] string {
+		"Key1" : "Value1",
+		"Key2" : "Value2",
+		"Key3" : "Value3",
+	}
+	m1 := map[int] string {
+		1 : "Val1",
+		2 : "Val2",
+		7 : "Val7",
+	}
+	fmt.Println(m)
+	fmt.Printf("%q\n", mapx.Keys(m))
+	fmt.Printf("%q\n", mapx.Values(m))
+	fmt.Printf("%q\n", mapx.Reverse(m))
+	fmt.Printf("%v\n", mapx.Reverse(m1))
+}

src/mapx/main.go

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+package mapx
+
+func Keys[K comparable, V any](m map[K] V) []K {
+	r := make([]K, 0, len(m))
+	for k := range m {
+		r = append(r, k)
+	}
+
+	return r
+}
+
+func Values[K comparable, V any](m map[K] V) []V {
+	r := make([]V, 0, len(m))
+	for _, v := range m {
+		r = append(r, v)
+	}
+
+	return r
+}
+
+func Reverse[K, V comparable](m map[K] V) map[V] K {
+	r := make(map[V] K)
+	for k, v := range m {
+		r[v] = k
+	}
+
+	return r
+}
+