[3.0.x] Refs #31493 -- Replaced var with const/let in documentation JS.

Backport of 2afa61e7d99b2ff2656dc64b6e28db88baf786a4 from master

Co-authored-by: Carlton Gibson <carlton.gibson@noumenal.es>

1 files changed, 3 insertions, 3 deletions

diff --git a/docs/internals/contributing/writing-code/javascript.txt b/docs/internals/contributing/writing-code/javascript.txt
index 09017af63a..07bea197a2 100644
--- a/docs/internals/contributing/writing-code/javascript.txt
+++ b/docs/internals/contributing/writing-code/javascript.txt
@@ -83,13 +83,13 @@ Django's JavaScript tests use `QUnit`_. Here is an example test module:
 
     QUnit.module('magicTricks', {
         beforeEach: function() {
-            var $ = django.jQuery;
+            const $ = django.jQuery;
             $('#qunit-fixture').append('<button class="button"></button>');
         }
     });
 
     QUnit.test('removeOnClick removes button on click', function(assert) {
-        var $ = django.jQuery;
+        const $ = django.jQuery;
         removeOnClick('.button');
         assert.equal($('.button').length, 1);
         $('.button').click();
@@ -97,7 +97,7 @@ Django's JavaScript tests use `QUnit`_. Here is an example test module:
     });
 
     QUnit.test('copyOnClick adds button on click', function(assert) {
-        var $ = django.jQuery;
+        const $ = django.jQuery;
         copyOnClick('.button');
         assert.equal($('.button').length, 1);
         $('.button').click();