From c4f52fcc68990b5c12368594678d8da47cc484bf Mon Sep 17 00:00:00 2001
From: MarvinBlstrli <45764446+MarvinBlstrli@users.noreply.github.com>
Date: Thu, 4 Jul 2019 08:44:34 +0200
Subject: [PATCH] fix javascript typo

---
 reference/forms/types/collection.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/reference/forms/types/collection.rst b/reference/forms/types/collection.rst
index bca32951536..c0dd31b23c2 100644
--- a/reference/forms/types/collection.rst
+++ b/reference/forms/types/collection.rst
@@ -147,7 +147,7 @@ you need is this JavaScript code:
         jQuery('.add-another-collection-widget').click(function (e) {
             var list = jQuery(jQuery(this).attr('data-list'));
             // Try to find the counter of the list or use the length of the list
-            var counter = list.data('widget-counter') | list.children().length;
+            var counter = list.data('widget-counter') || list.children().length;
 
             // grab the prototype template
             var newWidget = list.attr('data-prototype');