From c7a384c4c9b48c27aec0125ab988602dae1b618e Mon Sep 17 00:00:00 2001
From: Aditi <aditisingh1400@gmail.com>
Date: Wed, 17 Jan 2024 19:52:46 +0530
Subject: [PATCH] Make CalendarDateWeekOfYear return undefined

...for all calendars without well-defined week calendar system
---
 spec/intl.html          | 3 +++
 spec/mainadditions.html | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/spec/intl.html b/spec/intl.html
index 8c71457546..0f1450dd8c 100644
--- a/spec/intl.html
+++ b/spec/intl.html
@@ -1697,6 +1697,9 @@ <h1>
             Usually the [[Year]] field will contain the same value given by CalendarDateYear, but may contain the previous or next year if the week number in the [[Week]] field overlaps two different years.
             See also ToISOWeekOfYear.
           </p>
+          <p>
+            It returns *undefined* in [[Week]] and [[Year]] field for calendars that do not have a well-defined week calendar system.
+          </p>
         </emu-clause>
 
         <emu-clause id="sec-temporal-calendardatedaysinweek" type="abstract operation">
diff --git a/spec/mainadditions.html b/spec/mainadditions.html
index ad7e740cc7..8271889874 100644
--- a/spec/mainadditions.html
+++ b/spec/mainadditions.html
@@ -53,12 +53,12 @@ <h1>The Year-Week Record Specification Type</h1>
           <tbody>
             <tr>
               <td>[[Week]]</td>
-              <td>a positive integer</td>
+              <td>a positive integer or *undefined*</td>
               <td>The calendar week of year.</td>
             </tr>
             <tr>
               <td>[[Year]]</td>
-              <td>an integer</td>
+              <td>an integer or *undefined*</td>
               <td>The week calendar year.</td>
             </tr>
           </tbody>