From ce04eadb599a5cef223240c546fe3f4961eb8390 Mon Sep 17 00:00:00 2001
From: Lukasz Zajaczkowski <zreigz@gmail.com>
Date: Mon, 13 May 2024 11:31:38 +0200
Subject: [PATCH] add MapKeys method (#32)

* add MapKeys method

* fix unit test
---
 algorithms/map.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/algorithms/map.go b/algorithms/map.go
index a6a02f5..c40ebf6 100644
--- a/algorithms/map.go
+++ b/algorithms/map.go
@@ -8,6 +8,14 @@ func MapValues[K comparable, V any](m map[K]V) []V {
 	return s
 }
 
+func MapKeys[K comparable, V any](m map[K]V) []K {
+	s := make([]K, 0, len(m))
+	for k := range m {
+		s = append(s, k)
+	}
+	return s
+}
+
 func Merge(maps ...map[string]interface{}) map[string]interface{} {
 	res := maps[0]
 	for _, m := range maps[1:] {