diff --git a/sh/jshn.sh b/sh/jshn.sh
index 0b0c754..39d5331 100644
--- a/sh/jshn.sh
+++ b/sh/jshn.sh
@@ -244,3 +244,10 @@ json_select() {
 		;;
 	esac
 }
+
+json_is_a() {
+	local type
+
+	json_get_type type "$1"
+	[ "$type" = "$2" ]
+}