Issue #3489839 by hchonov: Cannot use forEach on FileList

file_upload_size_limit.libraries.yml

@@ -3,6 +3,6 @@ upload_limit:
   js:
     js/file-upload-size-limit.js: {}
   dependencies:
-    - core/once
     - core/drupal
     - core/drupalSettings
+    - core/once

js/file-upload-size-limit.js

-(function (once) {
+(function (Drupal, drupalSettings, once) {
 
   /**
    * File upload limit functions.
@@ -31,13 +31,12 @@
       // Check uploaded files if they are exists and singleFileSize is defined.
       const $fileInput = event.target;
 
-      console.log($fileInput.value)
-
       if ($fileInput.value && $fileInput.files && $fileInput.files.length) {
         // Calculate the size of the uploaded files.
         var totalUploadSize = 0;
 
-        $fileInput.files.forEach(({ size }) => {
+        for (var i = 0; i < $fileInput.files.length; i++) {
+          var size = $fileInput.files[i].size;
           // Check the single file size limit.
           if (size > singleFileSize) {
             var error = Drupal.t('The size of the uploaded file (%file_size MB) exceeds the maximum allowed size for a single file of %single_file_max_size MB.', {
@@ -49,7 +48,7 @@
 
           // Sum the total file upload size.
           totalUploadSize += size;
-        });
+        }
 
         // Check the total multiple file size limit.
         if (multipleLimitType !== 'unlimited' && (totalUploadSize > multipleFileSize)) {
@@ -114,4 +113,4 @@
     },
   };
 
-})(once);
+})(Drupal, drupalSettings, once);