diff --git a/sh/jshn.sh b/sh/jshn.sh
index 66baccb..7b0155d 100644
--- a/sh/jshn.sh
+++ b/sh/jshn.sh
@@ -288,3 +288,28 @@ json_is_a() {
 	json_get_type type "$1"
 	[ "$type" = "$2" ]
 }
+
+json_for_each_item() {
+	[ "$#" -ge 2 ] || return 0
+	local function="$1"; shift
+	local target="$1"; shift
+	local type val
+
+	json_get_type type "$target"
+	case "$type" in
+		object|array)
+			local keys key
+			json_select "$target"
+			json_get_keys keys
+			for key in $keys; do
+				json_get_var val "$key"
+				eval "$function \"\$val\" \"\$key\" \"\$@\""
+			done
+			json_select ..
+		;;
+		*)
+			json_get_var val "$target"
+			eval "$function \"\$val\" \"\" \"\$@\""
+		;;
+	esac
+}