fix error handling example in docs

kamstrup · Jun 2, 2023 · f5b779f · f5b779f
1 parent 167ad87
commit f5b779f
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/doc/error.md b/doc/error.md
@@ -44,7 +44,9 @@ func downloadFile(name string) error {
 }
 
 func downloadAllFiles() error {
-	firstErr, _ := seq.MappingOf(filesToDownload.Seq(), downloadFile).First(1)
-    return firstErr.Or(nil)	
+	firstErr, _ := seq.MappingOf(filesToDownload.Seq(), downloadFile).
+		Where(seq.IsNonZero[error]).
+		First()
+	return firstErr.Or(nil)	
 }
 ```