From b1ad76dbfe3b99e9118064c09eb66455656d63bb Mon Sep 17 00:00:00 2001
From: jschanker <jschanker@molloy.edu>
Date: Tue, 8 Jun 2021 00:26:02 -0400
Subject: [PATCH] Fix #4830 for getting/setting unnamed fields

* Returns null when getting unnamed field (value), throws error Field "undefined" not found when attempting to set value of unnamed field
---
 core/block.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/block.js b/core/block.js
index d081bc88928..00ee9d01178 100644
--- a/core/block.js
+++ b/core/block.js
@@ -1024,7 +1024,7 @@ Blockly.Block.prototype.setOnChange = function(onchangeFn) {
 Blockly.Block.prototype.getField = function(name) {
   for (var i = 0, input; (input = this.inputList[i]); i++) {
     for (var j = 0, field; (field = input.fieldRow[j]); j++) {
-      if (field.name == name) {
+      if (typeof field.name !== "undefined" && field.name == name) {
         return field;
       }
     }