Add filter helper method

2020-11-09 21:52:17 -07:00 · 2020-11-09 21:52:17 -07:00 · 9b1b7d3132
commit 9b1b7d3132
parent 85f32491cb
1 changed files with 12 additions and 0 deletions
--- a/filter.go
+++ b/filter.go
@ -0,0 +1,12 @@
+package dynamiclistener
+
+func OnlyAllow(str string) func(...string) []string {
+	return func(s2 ...string) []string {
+		for _, s := range s2 {
+			if s == str {
+				return []string{s}
+			}
+		}
+		return nil
+	}
+}