From 78ffe3f87002246897efb8cfcce96635301c00de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rados=C5=82aw=20Miernik?= <radekmie@gmail.com>
Date: Thu, 16 Nov 2023 10:43:37 +0100
Subject: [PATCH] Switched to ES5-friendly isPromiseLike helper.

---
 packages/blaze/materializer.js          | 2 +-
 packages/spacebars/spacebars-runtime.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/blaze/materializer.js b/packages/blaze/materializer.js
index 40e1338db..0a05ea85a 100644
--- a/packages/blaze/materializer.js
+++ b/packages/blaze/materializer.js
@@ -93,7 +93,7 @@ var materializeDOMInner = function (htmljs, intoArray, parentView, workStack) {
   throw new Error("Unexpected object in htmljs: " + htmljs);
 };
 
-const isPromiseLike = x => typeof x?.then === 'function';
+const isPromiseLike = x => !!x && typeof x.then === 'function';
 
 function waitForAllAttributesAndContinue(attrs, fn) {
   const promises = [];
diff --git a/packages/spacebars/spacebars-runtime.js b/packages/spacebars/spacebars-runtime.js
index 8baabead1..9f7f958b2 100644
--- a/packages/spacebars/spacebars-runtime.js
+++ b/packages/spacebars/spacebars-runtime.js
@@ -175,7 +175,7 @@ Spacebars.call = function (value/*, args*/) {
   }
 };
 
-const isPromiseLike = x => typeof x?.then === 'function';
+const isPromiseLike = x => !!x && typeof x.then === 'function';
 
 // Call this as `Spacebars.kw({ ... })`.  The return value
 // is `instanceof Spacebars.kw`.