From 8a069404e4883462e1b6dd1a4bd832d311a84e83 Mon Sep 17 00:00:00 2001
From: "ma.gaoyu" <ma.gaoyu@linecorp.com>
Date: Thu, 28 Feb 2019 14:58:23 +0800
Subject: [PATCH] fix bug: When the threshold of search options is smaller than
 the threshold of create options, there is a exception thrown.

---
 flexsearch.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flexsearch.js b/flexsearch.js
index 1922f4f..8ea54ed 100644
--- a/flexsearch.js
+++ b/flexsearch.js
@@ -1883,7 +1883,7 @@
 
                                 for(let z = 0; z < (resolution - threshold); z++){
 
-                                    if((map_value = map[z][value])){
+                                    if((map_value = (map[z] && map[z][value]))){
 
                                         map_check[count++] = map_value;
                                         map_found = true;