From f2e57c06ad3209273c99595e7300cbed02120f7e Mon Sep 17 00:00:00 2001
From: Alex Zauzolkov <alex.zauzolkov@yandex.ru>
Date: Tue, 14 Jun 2022 16:27:46 +1000
Subject: [PATCH] fix: Check for undefined value in InputRow.measure

---
 core/renderers/measurables/input_row.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/renderers/measurables/input_row.js b/core/renderers/measurables/input_row.js
index eb70a794c..00ca09ae7 100644
--- a/core/renderers/measurables/input_row.js
+++ b/core/renderers/measurables/input_row.js
@@ -59,6 +59,9 @@ class InputRow extends Row {
     let connectedBlockWidths = 0;
     for (let i = 0; i < this.elements.length; i++) {
       const elem = this.elements[i];
+      if (elem === undefined) {
+        continue;
+      }
       this.width += elem.width;
       if (Types.isInput(elem) && elem instanceof InputConnection) {
         if (Types.isStatementInput(elem) && elem instanceof StatementInput) {