From 78e1c33e3019014c9b72e8c58a998f11bd44f6c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20Schw=C3=B6rer?= <pubgit@mikescher.com>
Date: Sun, 16 Jun 2024 17:14:21 +0200
Subject: [PATCH] v0.0.475 ArrGroupBy

---
 go.mod           |  2 +-
 go.sum           |  2 ++
 goextVersion.go  |  4 ++--
 langext/array.go | 15 +++++++++++++++
 4 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/go.mod b/go.mod
index b993292..06e3014 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/jmoiron/sqlx v1.4.0
 	github.com/rs/xid v1.5.0
 	github.com/rs/zerolog v1.33.0
-	go.mongodb.org/mongo-driver v1.15.0
+	go.mongodb.org/mongo-driver v1.15.1
 	golang.org/x/crypto v0.24.0
 	golang.org/x/sys v0.21.0
 	golang.org/x/term v0.21.0
diff --git a/go.sum b/go.sum
index ca4ac9c..0c5b3a5 100644
--- a/go.sum
+++ b/go.sum
@@ -218,6 +218,8 @@ go.mongodb.org/mongo-driver v1.14.0 h1:P98w8egYRjYe3XDjxhYJagTokP/H6HzlsnojRgZRd
 go.mongodb.org/mongo-driver v1.14.0/go.mod h1:Vzb0Mk/pa7e6cWw85R4F/endUC3u0U9jGcNU603k65c=
 go.mongodb.org/mongo-driver v1.15.0 h1:rJCKC8eEliewXjZGf0ddURtl7tTVy1TK3bfl0gkUSLc=
 go.mongodb.org/mongo-driver v1.15.0/go.mod h1:Vzb0Mk/pa7e6cWw85R4F/endUC3u0U9jGcNU603k65c=
+go.mongodb.org/mongo-driver v1.15.1 h1:l+RvoUOoMXFmADTLfYDm7On9dRm7p4T80/lEQM+r7HU=
+go.mongodb.org/mongo-driver v1.15.1/go.mod h1:Vzb0Mk/pa7e6cWw85R4F/endUC3u0U9jGcNU603k65c=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.7.0 h1:pskyeJh/3AmoQ8CPE95vxHLqp1G1GfGNXTmcl9NEKTc=
 golang.org/x/arch v0.7.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
diff --git a/goextVersion.go b/goextVersion.go
index a8a4830..bb1923e 100644
--- a/goextVersion.go
+++ b/goextVersion.go
@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.474"
+const GoextVersion = "0.0.475"
 
-const GoextVersionTimestamp = "2024-06-14T23:18:58+0200"
+const GoextVersionTimestamp = "2024-06-16T17:14:21+0200"
diff --git a/langext/array.go b/langext/array.go
index 63c6bc0..9ab975b 100644
--- a/langext/array.go
+++ b/langext/array.go
@@ -564,3 +564,18 @@ func ArrChunk[T any](arr []T, chunkSize int) [][]T {
 
 	return res
 }
+
+func ArrGroupBy[T1 any, T2 comparable](arr []T1, groupfunc func(v T1) T2) map[T2][]T1 {
+	r := make(map[T2][]T1)
+
+	for _, v := range arr {
+		key := groupfunc(v)
+		if _, ok := r[key]; ok {
+			r[key] = append(r[key], v)
+		} else {
+			r[key] = []T1{v}
+		}
+	}
+
+	return r
+}