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Introduction Let the novices keep their keyboards for adventure games, their precious multi-touchy-feely fingertips for fruit cutting, and their fancy newfangled motion sensors for pretending they can dance like Michael Jackson. (Newsflash: They can't.) But you're different. You're better. You're a pro. For you, the games begin and end with a gamepad in your hands. But wait. Aren't you out of luck
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Service workers offer incredible utility, but can be tricky to work with at first. Workbox makes service workers easier to use. However, because service workers solve hard problems, any abstraction of that technology will also be tricky without understanding it. Thus, these first few bits of documentation will cover that underlying technology before getting into Workbox specifics. To view a runnin
Introduction A powerful feature that makes JavaScript unique is its ability to work asynchronously via callback functions. Assigning async callbacks let you write event-driven code but it also makes tracking down bugs a hair pulling experience since the JavaScript is not executing in a linear fashion. Luckily, now in Chrome DevTools, you can view the full call stack of asynchronous JavaScript call
The previous module demonstrated how the srcset attribute allows you to provide different-sized versions of the same image. The browser can then decide which is the right version to use. If you want to change the image completely, you'll need the picture element. In the same way that srcset builds upon the src attribute, the picture element builds upon the img element. The picture element wraps ar
<picture> <img src="image.jpg" alt="A description of the image."> </picture> If there is no img element nested inside the picture element, the picture element won't work. Like the srcset attribute, the picture element will update the value of the src attribute in that img element. The difference is that where the srcset attribute gives suggestions to the browser, the picture element gives commands
Server-sent events (SSEs) send automatic updates to a client from a server, with an HTTP connection. Once the connection is established, servers can initiate data transmission. You may want to use SSEs to send push notifications from your web app. SSEs send information in one direction, thus you won't receive updates from the client. The concept of SSEs may be familiar. A web app "subscribes" to a
Stay organized with collections Save and categorize content based on your preferences. Explore our growing collection of courses on key web design and development subjects. An industry expert has written each course, helped by members of the Chrome team. Follow the modules sequentially, or dip into the topics you most want to learn about.
Hi all, in the last edition of the DevTools Digest we got to check out the powerful Asynchronous call stacks and a few others. In this edition, we’ll see an improved Network Panel filtering (with autocomplete), edit abilities with Shadow DOM content, CodeMirror 4 updates and more. Network panel filtering You can now filter resources by certain fields such as Domain. One filter format is this: Doma
High performance web applications are crucial to a great user experience. As web applications become more and more complex, understanding performance impact is vital to creating a compelling experience. Over the past few years, a number of different APIs have appeared in the browser to help analyse performance of the network, load times, etc. but these don’t necessarily give fine-grained detail wi
Avoiding unnecessary paints Stay organized with collections Save and categorize content based on your preferences. Introduction Painting the elements for a site or application can get really expensive, and it can have a negative knock-on effect on our runtime performance. In this article we take a quick look at what can trigger painting in the browser, and how you can prevent unnecessary paints fr
Introduction In this article I’m going to talk about how to use the positional audio feature in the Web Audio API to add 3D sound into your WebGL scenes. To make the audio more believable, I will also introduce you to the environmental effects possible with the Web Audio API. To get a more thorough introduction to the Web Audio API, check out the Getting started with Web Audio API article by Boris
Introduction to Encrypted Media Extensions Stay organized with collections Save and categorize content based on your preferences. Encrypted Media Extensions (EME) provides an API that enables web applications to interact with content protection systems, to allow playback of encrypted audio and video. EME is designed to enable the same app and encrypted files to be used in any browser, regardless o
Introduction On August 7, 2010, deviantART celebrated its 10th birthday. We celebrated our birthday by launching an HTML5 drawing tool called deviantART muro. The tool can be used as a stand-alone web application as well as a lightweight drawing tool for adding pictures to forum comments. The deviantART community greeted this new drawing tool with great enthusiasm, and the tool itself now sees as
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