docs: format

Author: Timeless0911

website/docs/en/config/lib/bundle.mdx

@@ -5,6 +5,8 @@
 
 Specify whether to bundle the library, which is known as bundle mode when `bundle` is set to `true`, and bundleless mode when set to `false`.
 
+See [bundle / bundleless](/guide/basic/output-structure#bundle--bundleless) for more details.
+
 ::: warning
 
 The bundleless mode is not fully supported yet, and some features like assets may not work properly.

website/docs/en/config/lib/format.mdx

@@ -1,4 +1,17 @@
 # lib.format
 
-- **Type:** `string`
+- **Type:** `'esm' | 'cjs' | 'umd' | 'mf'`
+
 - **Default:** `undefined`
+
+- **Required**: true
+
+Specify the output format of the library.
+
+See [Output Format](/guide/basic/output-format) and [Module Federation](/guide/advanced/module-federation) for more details.
+
+::: note
+
+The `umd` format only works when [bundle](/config/lib/bundle) is set to `true`.
+
+:::

website/docs/en/guide/basic/_meta.json

@@ -4,6 +4,5 @@
   "typescript",
   "output-format",
   "output-structure",
-  "upgrade-rslib",
-  "umd"
+  "upgrade-rslib"
 ]

website/docs/en/guide/basic/output-format.mdx

@@ -83,16 +83,16 @@ A detailed answer from StackOverflow: [What is the Universal Module Definition (
 
 ### How to build a UMD library?
 
-- Set the `output.format` to `umd` in the Rslib configuration file.
-- If the library need to be exported with a name, set `output.umdName` to the name of the UMD library.
+- Set the `lib.format` to `umd` in the Rslib configuration file.
+- If the library need to be exported with a name, set `lib.umdName` to the name of the UMD library.
 - Use `output.externals` to specify the external dependencies that the UMD library depends on, `lib.autoExtension` is enabled by default for UMD.
 
 ### Examples
 
 The following Rslib config is an example to build a UMD library.
 
-- `output.format: 'umd'`: instruct Rslib to build in UMD format.
-- `output.umdName: 'RslibUmdExample'`: set the export name of the UMD library.
+- `lib.format: 'umd'`: instruct Rslib to build in UMD format.
+- `lib.umdName: 'RslibUmdExample'`: set the export name of the UMD library.
 - `output.externals.react: 'React'`: specify the external dependency `react` could be accessed by `window.React`.
 - `runtime: 'classic'`: use the classic runtime of React to support applications that using React version under 18.