From ee13cd10fe7ad491daaca5272a626f2a8f099ff6 Mon Sep 17 00:00:00 2001
From: Hiroyasu Nishiyama <hiroyasu.nishiyama.uq@hitachi.com>
Date: Wed, 6 May 2020 11:21:58 +0900
Subject: [PATCH] add checks for interval value

---
 .../@node-red/nodes/core/sequence/19-batch.js   | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/packages/node_modules/@node-red/nodes/core/sequence/19-batch.js b/packages/node_modules/@node-red/nodes/core/sequence/19-batch.js
index 52cdb71bd..77574f222 100644
--- a/packages/node_modules/@node-red/nodes/core/sequence/19-batch.js
+++ b/packages/node_modules/@node-red/nodes/core/sequence/19-batch.js
@@ -213,13 +213,20 @@ module.exports = function(RED) {
                 send_interval(node, allow_empty_seq);
                 node.pending_count = 0;
             }
-            var timer = setInterval(msgHandler, interval);
+            var timer = undefined;
+            if (interval > 0) {
+                timer = setInterval(msgHandler, interval);
+            }
             this.on("input", function(msg) {
                 if (msg.hasOwnProperty("reset")) {
-                    clearInterval(timer);
+                    if (timer !== undefined) {
+                        clearInterval(timer);
+                    }
                     node.pending = [];
                     node.pending_count = 0;
-                    timer = setInterval(msgHandler, interval);
+                    if (interval > 0) {
+                        timer = setInterval(msgHandler, interval);
+                    }
                     return;
                 }
                 node.pending.push(msg);
@@ -232,7 +239,9 @@ module.exports = function(RED) {
                 }
             });
             this.on("close", function() {
-                clearInterval(timer);
+                if (timer !== undefined) {
+                    clearInterval(timer);
+                }
                 node.pending = [];
                 node.pending_count = 0;
             });