Sync: 2024/12/02

Author: AmosHuKe

src/content/deployment/web.md

@@ -79,6 +79,21 @@ to view the release version of your app.
 在浏览器中访问 `localhost:8000`（以 Python 启动的服务器为例）
 来查看应用程序的发布版本 (release)。
 
+## Additional build flags
+You might need to deploy a profile or debug build for testing.
+To do this, pass the `--profile` or `--debug` flag
+to the `flutter build web` command.
+Profile builds are specialized for performance profiling using Chrome DevTools,
+and debug builds can be used to configure dart2js
+to respect assertions and change the optimization level (using the `-O` flag.)
+
+## Choosing a build mode and a renderer
+
+Flutter web provides two build modes (default and WebAssembly) and two renderers
+(`canvaskit` and `skwasm`).
+
+For more information, see [Web renderers][].
+
 ## Deploying to the web
 
 When you are ready to deploy your app,