From 193b15e0744cf4c75173a400cfa2a74b13e7e48b Mon Sep 17 00:00:00 2001
From: "Mr.tang" <1074461480@qq.com>
Date: Thu, 8 Feb 2018 16:40:21 -0600
Subject: [PATCH] fix console.error crash (#532)

---
 client/modules/IDE/components/Editor.jsx | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/client/modules/IDE/components/Editor.jsx b/client/modules/IDE/components/Editor.jsx
index e183767c..b8088996 100644
--- a/client/modules/IDE/components/Editor.jsx
+++ b/client/modules/IDE/components/Editor.jsx
@@ -187,9 +187,11 @@ class Editor extends React.Component {
     if (this.props.runtimeErrorWarningVisible) {
       this.props.consoleEvents.forEach((consoleEvent) => {
         if (consoleEvent.method === 'error') {
-          const n = consoleEvent.arguments.replace(')', '').split(' ');
-          const lineNumber = parseInt(n[n.length - 1], 10) - 1;
-          this._cm.addLineClass(lineNumber, 'background', 'line-runtime-error');
+          if (consoleEvent.arguments.indexOf(')') > -1) {
+            const n = consoleEvent.arguments.replace(')', '').split(' ');
+            const lineNumber = parseInt(n[n.length - 1], 10) - 1;
+            this._cm.addLineClass(lineNumber, 'background', 'line-runtime-error');
+          }
         }
       });
     }