[docs] add links to React Native samples for some tested packages (Az…

…ure#25324)

samples/frameworks/react-native/appconfigBasic/README.md

@@ -47,7 +47,7 @@ Open App.tsx and add the following code so it looks similar to following code
 
 ### Add the App Configuration sample file
 
-create a new file `appConfigSample.ts` in the sample directory as `App.tsx` with following content from [appConfigSample.ts](https://github.com/Azure/azure-sdk-for-js/samples/frameworks/react-native/appconfigBasic/appConfigSample.ts) file
+create a new file `appConfigSample.ts` in the sample directory as `App.tsx` with following content from [appConfigSample.ts](https://github.com/Azure/azure-sdk-for-js/blob/main/samples/frameworks/react-native/appconfigBasic/appConfigSample.ts) file
 
 ### Add dependencies
 

sdk/appconfiguration/app-configuration/README.md

@@ -189,6 +189,10 @@ setLogLevel("info");
 
 For more detailed instructions on how to enable logs, you can look at the [@azure/logger package docs](https://github.com/Azure/azure-sdk-for-js/tree/main/sdk/core/logger).
 
+### React Native support
+
+React Native does not support some JavaScript API used by this SDK library so you need to provide polyfills for them.  Please see our [React Native sample with Expo](https://github.com/Azure/azure-sdk-for-js/blob/main/samples/frameworks/react-native/appconfigBasic/README.md#add-polyfills) for more details.
+
 ## Next steps
 
 The following samples show you the various ways you can interact with App Configuration:

sdk/eventhub/event-hubs/README.md

@@ -139,6 +139,10 @@ export default {
 
 Please consult the documentation of your favorite bundler for more information on using polyfills.
 
+### React Native Support
+
+Similar to browsers, React Native does not support some JavaScript API used by this SDK library so you need to provide polyfills for them.  Please see the [Messaging React Native sample with Expo](https://github.com/Azure/azure-sdk-for-js/blob/main/samples/frameworks/react-native-expo/ts/messaging/README.md) for more details.
+
 ### Authenticate the client
 
 Interaction with Event Hubs starts with either an instance of the

sdk/notificationhubs/notification-hubs/README.md

@@ -52,9 +52,9 @@ Once created, the Notification Hub can be configured using the [Azure Portal or
 This SDK for JavaScript offers two ways of interacting with Azure Notification Hubs, either through the class-based approach, or with a modular design approach.  The class-based approach is consistent across all packages to create a client and then interact with the methods on the client.
 
 ```typescript
-import { 
+import {
   NotificationHubsClient,
-  createAppleInstallation 
+  createAppleInstallation
 } from "@azure/notification-hubs";
 
 const client = new NotificationHubsClient("<connection string>", "<hub name>");
@@ -68,9 +68,9 @@ const installation = createAppleInstallation({
 const result = await client.createOrUpdateInstallation(installation);
 ```
 
-The modular approach allows the developer to pick and choose which functions to import as each method is exposed individually.  This approach uses subpath-exports with ES-Modules to expose the methods via direct imports.  With the individual exports, this creates a better tree-shaking experience and smaller bundle sizes that the developer can take advantage of.  
+The modular approach allows the developer to pick and choose which functions to import as each method is exposed individually.  This approach uses subpath-exports with ES-Modules to expose the methods via direct imports.  With the individual exports, this creates a better tree-shaking experience and smaller bundle sizes that the developer can take advantage of.
 
-Note that creating a client is exposed through the `"@azure/notification-hubs/api"` subpath and all client methods are exposed through the `"@azure/notification-hubs/api"` subpath.  Each function exported takes the `client` as the first parameter and the rest of the parameters remain unchanged.  
+Note that creating a client is exposed through the `"@azure/notification-hubs/api"` subpath and all client methods are exposed through the `"@azure/notification-hubs/api"` subpath.  Each function exported takes the `client` as the first parameter and the rest of the parameters remain unchanged.
 
 The following subpaths are exposed:
 
@@ -293,10 +293,10 @@ registration = await client.updateRegistration(registration);
 Using the modular approach, the code would be as follows:
 
 ```typescript
-import { 
-  createClientContext, 
-  getRegistration, 
-  updateRegistration 
+import {
+  createClientContext,
+  getRegistration,
+  updateRegistration
 } from "@azure/notification-hubs/api";
 
 const context = createClientContext("<connection string>", "<hub name>");
@@ -384,7 +384,7 @@ const result = await sendNotification(context, notification);
 Notification Hubs can be used to send notifications to all registered devices per platform using broadcast send through the `sendNotification` method.
 
 ```typescript
-import { 
+import {
   NotificationHubsClient,
   createAppleNotification,
 } from "@azure/notification-hubs/api";
@@ -443,7 +443,7 @@ if (result.notificationId) {
 
 #### Direct Send
 
-To send directly a device, the user can send using the platform provided unique identifier such as APNs device token by calling the `sendNotification` method with a `deviceHandle` parameter.  
+To send directly a device, the user can send using the platform provided unique identifier such as APNs device token by calling the `sendNotification` method with a `deviceHandle` parameter.
 
 ```typescript
 import {
@@ -663,9 +663,11 @@ React Native currently does not have support for [`URLSearchParams`] which is us
 import 'url-search-params-polyfill';
 ```
 
+We also need to provide polyfill for `TextEncoder` API and async iterator API. Please see our [React Native sample with Expo](https://github.com/Azure/azure-sdk-for-js/blob/main/samples/frameworks/react-native/appconfigBasic/README.md#add-polyfills) for more details.
+
 ### Diagnose Dropped Notifications
 
-Azure Notification Hubs has a complete guide to troubleshooting problems with dropped notifications in the [Diagnose dropped notifications in Azure Notification Hubs Guide](https://docs.microsoft.com/azure/notification-hubs/notification-hubs-push-notification-fixer).  
+Azure Notification Hubs has a complete guide to troubleshooting problems with dropped notifications in the [Diagnose dropped notifications in Azure Notification Hubs Guide](https://docs.microsoft.com/azure/notification-hubs/notification-hubs-push-notification-fixer).
 
 [Test send](https://docs.microsoft.com/azure/notification-hubs/notification-hubs-push-notification-fixer#enabletestsend-property) is supported supported in the `sendNotification` method with the `enableTestSend` option:
 

sdk/servicebus/service-bus/README.md

@@ -137,6 +137,10 @@ export default {
 
 Please consult the documentation of your favorite bundler for more information on using polyfills.
 
+### React Native Support
+
+Similar to browsers, React Native does not support some JavaScript api used by this SDK library so you need to provide polyfills for them.  Please see the [Messaging React Native sample with Expo](https://github.com/Azure/azure-sdk-for-js/blob/main/samples/frameworks/react-native-expo/ts/messaging/README.md) for more details.
+
 ### Authenticate the client
 
 Interaction with Service Bus starts with an instance of the [ServiceBusClient][sbclient] class. You can