Fix: Invalid JSDoc for optional string parameter and return value.

docs/reference-guides/data/data-core-blocks.md

@@ -385,7 +385,7 @@ _Parameters_
 
 _Returns_
 
--   `string?`: Default block name.
+-   `?string`: Default block name.
 
 ### getDefaultBlockVariation
 
@@ -464,7 +464,7 @@ _Parameters_
 
 _Returns_
 
--   `string?`: Name of the block for handling non-block content.
+-   `?string`: Name of the block for handling non-block content.
 
 ### getGroupingBlockName
 
@@ -502,7 +502,7 @@ _Parameters_
 
 _Returns_
 
--   `string?`: Name of the block for handling the grouping of blocks.
+-   `?string`: Name of the block for handling the grouping of blocks.
 
 ### getUnregisteredFallbackBlockName
 
@@ -540,7 +540,7 @@ _Parameters_
 
 _Returns_
 
--   `string?`: Name of the block for handling unregistered blocks.
+-   `?string`: Name of the block for handling unregistered blocks.
 
 ### hasBlockSupport
 

docs/reference-guides/data/data-core-editor.md

@@ -272,7 +272,7 @@ _Parameters_
 
 _Returns_
 
--   `string?`: Template ID.
+-   `?string`: Template ID.
 
 ### getDeviceType
 

docs/reference-guides/data/data-core-keyboard-shortcuts.md

@@ -239,7 +239,7 @@ _Parameters_
 
 _Returns_
 
--   `string?`: Shortcut description.
+-   `?string`: Shortcut description.
 
 ### getShortcutKeyCombination
 
@@ -335,7 +335,7 @@ _Parameters_
 
 _Returns_
 
--   `string?`: Shortcut representation.
+-   `?string`: Shortcut representation.
 
 <!-- END TOKEN(Autogenerated selectors|../../../packages/keyboard-shortcuts/src/store/selectors.js) -->
 

packages/block-editor/src/hooks/gap.js

@@ -27,7 +27,7 @@ export function getGapBoxControlValueFromStyle( blockGapValue ) {
  * Returns a CSS value for the `gap` property from a given blockGap style.
  *
  * @param {string? | Object?} blockGapValue A block gap string or axial object value, e.g., '10px' or { top: '10px', left: '10px'}.
- * @param {string?}           defaultValue  A default gap value.
+ * @param {?string}           defaultValue  A default gap value.
  * @return {string|null}                    The concatenated gap value (row and column).
  */
 export function getGapCSSValue( blockGapValue, defaultValue = '0' ) {

packages/block-library/src/list-item/hooks/use-merge.js

@@ -49,7 +49,7 @@ export default function useMerge( clientId, onMerge ) {
 	 * return the next list item of the parent list item if it exists.
 	 *
 	 * @param {string} id A list item client ID.
-	 * @return {string?} The client ID of the next list item.
+	 * @return {?string} The client ID of the next list item.
 	 */
 	function _getNextId( id ) {
 		const next = getNextBlockClientId( id );
@@ -68,7 +68,7 @@ export default function useMerge( clientId, onMerge ) {
 	 * line, regardless of indentation level.
 	 *
 	 * @param {string} id The client ID of the current list item.
-	 * @return {string?} The client ID of the next list item.
+	 * @return {?string} The client ID of the next list item.
 	 */
 	function getNextId( id ) {
 		const order = getBlockOrder( id );

packages/blocks/src/store/selectors.js

@@ -437,7 +437,7 @@ export function getCollections( state ) {
  * };
  * ```
  *
- * @return {string?} Default block name.
+ * @return {?string} Default block name.
  */
 export function getDefaultBlockName( state ) {
 	return state.defaultBlockName;
@@ -473,7 +473,7 @@ export function getDefaultBlockName( state ) {
  * };
  * ```
  *
- * @return {string?} Name of the block for handling non-block content.
+ * @return {?string} Name of the block for handling non-block content.
  */
 export function getFreeformFallbackBlockName( state ) {
 	return state.freeformFallbackBlockName;
@@ -509,7 +509,7 @@ export function getFreeformFallbackBlockName( state ) {
  * };
  * ```
  *
- * @return {string?} Name of the block for handling unregistered blocks.
+ * @return {?string} Name of the block for handling unregistered blocks.
  */
 export function getUnregisteredFallbackBlockName( state ) {
 	return state.unregisteredFallbackBlockName;
@@ -545,7 +545,7 @@ export function getUnregisteredFallbackBlockName( state ) {
  * };
  * ```
  *
- * @return {string?} Name of the block for handling the grouping of blocks.
+ * @return {?string} Name of the block for handling the grouping of blocks.
  */
 export function getGroupingBlockName( state ) {
 	return state.groupingBlockName;

packages/date/README.md

@@ -75,7 +75,7 @@ Create and return a JavaScript Date Object from a date string in the WP timezone
 
 _Parameters_
 
--   _dateString_ `string?`: Date formatted in the WP timezone.
+-   _dateString_ `?string`: Date formatted in the WP timezone.
 
 _Returns_
 

packages/date/src/index.js

@@ -588,7 +588,7 @@ export function isInTheFuture( dateValue ) {
 /**
  * Create and return a JavaScript Date Object from a date string in the WP timezone.
  *
- * @param {string?} dateString Date formatted in the WP timezone.
+ * @param {?string} dateString Date formatted in the WP timezone.
  *
  * @return {Date} Date
  */

packages/e2e-test-utils/README.md

@@ -253,8 +253,8 @@ _Parameters_
 
 -   _slug_ `string`: Theme slug.
 -   _settings_ `Object?`: Optional settings object.
--   _settings.newThemeSlug_ `string?`: A theme to switch to if the theme to delete is active. Required if the theme to delete is active.
--   _settings.newThemeSearchTerm_ `string?`: A search term to use if the new theme is not findable by its slug.
+-   _settings.newThemeSlug_ `?string`: A theme to switch to if the theme to delete is active. Required if the theme to delete is active.
+-   _settings.newThemeSearchTerm_ `?string`: A search term to use if the new theme is not findable by its slug.
 
 ### deleteUser
 
@@ -479,7 +479,7 @@ Installs a plugin from the WP.org repository.
 _Parameters_
 
 -   _slug_ `string`: Plugin slug.
--   _searchTerm_ `string?`: If the plugin is not findable by its slug use an alternative term to search.
+-   _searchTerm_ `?string`: If the plugin is not findable by its slug use an alternative term to search.
 
 ### installTheme
 
@@ -489,7 +489,7 @@ _Parameters_
 
 -   _slug_ `string`: Theme slug.
 -   _settings_ `Object?`: Optional settings object.
--   _settings.searchTerm_ `string?`: Search term to use if the theme is not findable by its slug.
+-   _settings.searchTerm_ `?string`: Search term to use if the theme is not findable by its slug.
 
 ### isCurrentURL
 

packages/e2e-test-utils/src/delete-theme.js

@@ -13,8 +13,8 @@ import { isThemeInstalled } from './theme-installed';
  *
  * @param {string}  slug                        Theme slug.
  * @param {Object?} settings                    Optional settings object.
- * @param {string?} settings.newThemeSlug       A theme to switch to if the theme to delete is active. Required if the theme to delete is active.
- * @param {string?} settings.newThemeSearchTerm A search term to use if the new theme is not findable by its slug.
+ * @param {?string} settings.newThemeSlug       A theme to switch to if the theme to delete is active. Required if the theme to delete is active.
+ * @param {?string} settings.newThemeSearchTerm A search term to use if the new theme is not findable by its slug.
  */
 export async function deleteTheme(
 	slug,

packages/e2e-test-utils/src/get-current-user.js

@@ -1,7 +1,7 @@
 /**
  * Get the username of the user that's currently logged into WordPress (if any).
  *
- * @return {string?} username The user that's currently logged into WordPress (if any).
+ * @return {?string} username The user that's currently logged into WordPress (if any).
  */
 export async function getCurrentUser() {
 	const cookies = await page.cookies();

packages/e2e-test-utils/src/install-plugin.js

@@ -9,7 +9,7 @@ import { visitAdminPage } from './visit-admin-page';
  * Installs a plugin from the WP.org repository.
  *
  * @param {string}  slug       Plugin slug.
- * @param {string?} searchTerm If the plugin is not findable by its slug use an alternative term to search.
+ * @param {?string} searchTerm If the plugin is not findable by its slug use an alternative term to search.
  */
 export async function installPlugin( slug, searchTerm ) {
 	await switchUserToAdmin();

packages/e2e-test-utils/src/install-theme.js

@@ -11,7 +11,7 @@ import { isThemeInstalled } from './theme-installed';
  *
  * @param {string}  slug                Theme slug.
  * @param {Object?} settings            Optional settings object.
- * @param {string?} settings.searchTerm Search term to use if the theme is not findable by its slug.
+ * @param {?string} settings.searchTerm Search term to use if the theme is not findable by its slug.
  */
 export async function installTheme( slug, { searchTerm } = {} ) {
 	await switchUserToAdmin();

packages/editor/src/store/selectors.js

@@ -206,7 +206,7 @@ export function getCurrentPostId( state ) {
  *
  * @param {Object} state Global application state.
  *
- * @return {string?} Template ID.
+ * @return {?string} Template ID.
  */
 export function getCurrentTemplateId( state ) {
 	return state.templateId;

packages/keyboard-shortcuts/src/store/selectors.js

@@ -40,7 +40,7 @@ const FORMATTING_METHODS = {
  * @param {keyof FORMATTING_METHODS}  representation Type of representation
  *                                                   (display, raw, ariaLabel).
  *
- * @return {string?} Shortcut representation.
+ * @return {?string} Shortcut representation.
  */
 function getKeyCombinationRepresentation( shortcut, representation ) {
 	if ( ! shortcut ) {
@@ -135,7 +135,7 @@ export function getShortcutKeyCombination( state, name ) {
  * };
  *```
  *
- * @return {string?} Shortcut representation.
+ * @return {?string} Shortcut representation.
  */
 export function getShortcutRepresentation(
 	state,
@@ -172,7 +172,7 @@ export function getShortcutRepresentation(
  *     );
  * };
  *```
- * @return {string?} Shortcut description.
+ * @return {?string} Shortcut description.
  */
 export function getShortcutDescription( state, name ) {
 	return state[ name ] ? state[ name ].description : null;