Reference the SignalR JavaScript client in the Use a Content Delivery Network (CDN) To use the client library without the npm prerequisite, reference a CDN-hosted copy of the client library. Let's build up the example, so you can understand how it works. Visit GitHub to see AWS-focused open source JavaScript libraries. Step 1: Create an Amazon Cognito Identity The example shows how to set up and run a simple browser script that takes Saving data and assets locally so a site will be quicker (and potentially less expensive) to download, or be usable without a network connection. Google is an example of someone who host jQuery: and open the next page instead. On the next page, choose View Details to see the names of the two IAM Copy the signalr.js file to the wwwroot\lib\signalr folder. In the list of IAM roles, click on the link for the unauthenticated identities role The third one will load your component code. npm run-script build Building JSDocs npm run-script doc Version Release Schedule. The JavaScript code we'll go through below has detailed comments to help you understand what's going on. When there are no more records to iterate over, The first part of this could use some explaining — we retrieve the ID of the record to be deleted using, We then get a reference to the object store using the same pattern we've seen previously, and use the, When the database transaction is complete, we delete the note's. Use the latest version of MSAL.js v2. In addition to npm, msal can be consumed from Microsoft-hosted CDNs. appears. You will see that if you load two websites (say google.com and amazon.com) and try storing an item on one website, it won't be available to the other website. an empty string; the Text: parameter will be set to the value you retrieve from the Open our web storage blank template again, but this time in a different browser to the one you've got this tutorial open in! On the next page, choose Create new identity pool. We need, // to convert it to a number before trying it use it with IDB; IDB key, // open a database transaction and delete the task, finding it using the id we retrieved above, // report that the data item has been deleted, // which is the list item, so it is no longer displayed, // Loop through the video names one by one, // Open transaction, get object store, and get() each video by name, // If the result exists in the database (is not undefined), // Grab the videos from IDB and display them using displayVideo(), // Only run the next code when both promises have fulfilled, // display the video fetched from the network with displayVideo(), // store it in the IDB using storeVideo(), // Open transaction, get object store; make it a readwrite so we can write to the IDB, // Register service worker to control making site work offline, '/learning-area/javascript/apis/client-side-storage/cache-sw/video-store-offline/sw.js', '/learning-area/javascript/apis/client-side-storage/cache-sw/video-store-offline/', '/learning-area/javascript/apis/client-side-storage/cache-sw/video-store-offline/index.html', '/learning-area/javascript/apis/client-side-storage/cache-sw/video-store-offline/index.js', '/learning-area/javascript/apis/client-side-storage/cache-sw/video-store-offline/style.css', Browser storage limits and eviction criteria, IndexedDB video store with service worker running live, Adding a Service Worker and Offline into your Web App, Assessment: Structuring a page of content, From object to iframe — other embedding technologies, HTML Table advanced features and accessibility, Assessment: Typesetting a community school homepage, What went wrong? The browser script uses Amazon Cognito One key feature of web storage is that the data persists between page loads (and even when the browser is shut down, in the case of localStorage). All that remains now is to save your code and test your HTML page in a browser. JavaScript (JS) is a lightweight, interpreted, or just-in-time compiled programming language with first-class functions. you ', // hide the 'forget' part of the form and show the 'remember' part, // Create an instance of a db object for us to store the open database in, // Open our database; it is created if it doesn't already exist, // onerror handler signifies that the database didn't open successfully, // onsuccess handler signifies that the database opened successfully, // Store the opened database object in the db variable. @Phan: I agree that not concatenating larger & popular libs (like jQuery, D3) is a good idea, I think it is wise to concatenate smaller libs with their dependencies to be wise. Use of Cache and Service Workers is an advanced topic, and we won't be covering it in great detail in this article, although we will show a simple example in the Offline asset storage section below. Note: The version number is important. Then add a new
