From 2fadc24d287b000a800ca8db7eff9c0d49b0818f Mon Sep 17 00:00:00 2001
From: Vaidehi Joshi <vaidehi.sj@gmail.com>
Date: Tue, 14 Jul 2020 08:12:07 -0700
Subject: [PATCH] Fix TypeError: null is not an object in
 initializeArticleReactions.js (#9297) [deploy]

* Fix TypeError: null is not an object in initializeArticleReactions.js

Should fix https://app.honeybadger.io/fault/67192/6f9b4fdf475e2229c968fa26d785b90f

* Return 0 rather than undefined if reactionEl doesn't exist
---
 .../initializers/initializeArticleReactions.js            | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/assets/javascripts/initializers/initializeArticleReactions.js b/app/assets/javascripts/initializers/initializeArticleReactions.js
index d7b2b2775..3f369c946 100644
--- a/app/assets/javascripts/initializers/initializeArticleReactions.js
+++ b/app/assets/javascripts/initializers/initializeArticleReactions.js
@@ -40,12 +40,12 @@ function hasUserReacted(reactionName) {
 }
 
 function getNumReactions(reactionName) {
-  var num = document.getElementById('reaction-number-' + reactionName)
-    .textContent;
-  if (num === '') {
+  const reactionEl = document.getElementById('reaction-number-' + reactionName);
+  if (!reactionEl || reactionEl.textContent === '') {
     return 0;
   }
-  return parseInt(num, 10);
+
+  return parseInt(reactionEl.textContent, 10);
 }
 
 function reactToArticle(articleId, reaction) {