From 4232591fcc413f6137c8f6bcea0831814481a2ba Mon Sep 17 00:00:00 2001
From: ScuroNeko <nix1304@gmail.com>
Date: Thu, 19 Feb 2026 15:05:01 +0300
Subject: [PATCH] join

---
 set.go   | 10 ++++++++++
 slice.go | 10 ++++++++++
 tuple.go |  9 +++++++++
 3 files changed, 29 insertions(+)

diff --git a/set.go b/set.go
index e92b9dd..af1ce8e 100644
--- a/set.go
+++ b/set.go
@@ -1,7 +1,9 @@
 package extypes
 
 import (
+	"fmt"
 	"reflect"
+	"strings"
 )
 
 type Set[T any] []T
@@ -108,3 +110,11 @@ func (s Set[T]) Map(f func(e T) T) Set[T] {
 	}
 	return s
 }
+
+func (s Set[T]) Join(sep string) string {
+	st := make([]string, len(s))
+	for i, v := range s {
+		st[i] = fmt.Sprintf("%v", v)
+	}
+	return strings.Join(st, sep)
+}
diff --git a/slice.go b/slice.go
index d0bdeba..1381450 100644
--- a/slice.go
+++ b/slice.go
@@ -1,7 +1,9 @@
 package extypes
 
 import (
+	"fmt"
 	"reflect"
+	"strings"
 )
 
 type Slice[T any] []T
@@ -103,3 +105,11 @@ func (s Slice[T]) Map(f func(e T) T) Slice[T] {
 	}
 	return s
 }
+
+func (s Slice[T]) Join(sep string) string {
+	st := make([]string, len(s))
+	for i, v := range s {
+		st[i] = fmt.Sprintf("%v", v)
+	}
+	return strings.Join(st, sep)
+}
diff --git a/tuple.go b/tuple.go
index 4b24fbb..cd6386f 100644
--- a/tuple.go
+++ b/tuple.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"reflect"
+	"strings"
 )
 
 type Tuple[T any] struct {
@@ -60,6 +61,14 @@ func (t Tuple[T]) ForEach(f func(int, T)) Tuple[T] {
 	return t
 }
 
+func (t Tuple[T]) Join(sep string) string {
+	st := make([]string, len(t.s))
+	for i, v := range t.s {
+		st[i] = fmt.Sprintf("%v", v)
+	}
+	return strings.Join(st, sep)
+}
+
 func (t Tuple[T]) String() string                   { return fmt.Sprint(t.s) }
 func (t *Tuple[T]) UnmarshalJSON(data []byte) error { return json.Unmarshal(data, &t.s) }
 func (t Tuple[T]) MarshalJSON() ([]byte, error)     { return json.Marshal(t.s) }