From b73e4173a3c1e69e02ad6b4e3b43e425e57a5be9 Mon Sep 17 00:00:00 2001
From: MHSanaei <mc.sanaei@gmail.com>
Date: Thu, 9 Feb 2023 22:48:06 +0330
Subject: 3x-ui

---
 util/common/stringUtil.go | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 util/common/stringUtil.go

(limited to 'util/common/stringUtil.go')

diff --git a/util/common/stringUtil.go b/util/common/stringUtil.go
new file mode 100644
index 00000000..5f1f93fd
--- /dev/null
+++ b/util/common/stringUtil.go
@@ -0,0 +1,9 @@
+package common
+
+import "sort"
+
+func IsSubString(target string, str_array []string) bool {
+	sort.Strings(str_array)
+	index := sort.SearchStrings(str_array, target)
+	return index < len(str_array) && str_array[index] == target
+}
-- 
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