Articles tagged “JavaScript”
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Introducing the MDN Web Docs Front-end developer learning pathway
The MDN Web Docs Learning Area teaches fundamentals of modern web development, beginning with HTML, CSS, and JavaScript essentials. In feedback this year, readers asked for a more opinionated, structured approach. They asked for coverage of client-side tooling, frameworks, transformation tools, and deployment tools widely used in today's workplace. Meet the Front-end developer learning pathway from MDN.
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jsDelivr – The advanced open source public CDN
This is a guest post by Dmitriy Akulov and his project jsDelivr. – Editor’s note. As a developer you are probably aware of Google Hosted Libraries. Google offers an easy and fast way to include 12 of the most popular js libraries in your websites. But what if you are a webmaster and you want […]
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JSMad – a JavaScript MP3 decoder
It always amazes me just how fast modern browsers and their JavaScript engines are. And how creative people get when trying to make things work inside a browser instead of relying on a plugin that our end users would have to install (and more importantly constantly keep up to date). The latest thing that make […]
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A cartoon intro to WebAssembly
WebAssembly is a way of taking code written in programming languages other than JavaScript and running that code in the browser. So when people say that WebAssembly is fast, what they are comparing it to is JavaScript. In this series, I want to explain to you why WebAssembly is fast.
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Protecting your Firefox OS App code
One question we get asked quite often about developing web applications using HTML5, CSS3, and JavaScript, is about how to conceal code. Reasons range from preventing cheating, protecting intellectual property, hiding encryption algorithms and others. Since JavaScript is executed on the client side, even on Firefox OS, the users can get access the code if […]
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Firefox 73 is upon us
Today we’ve released Firefox 73, with useful additions that include CSS and JavaScript updates, and numerous DevTools improvements. We’ve added to CSS logical properties, pushed performance forward in the Console and the Debugger, and improved the WebSocket inspector. Thanks to all for the ongoing DevTools feedback.
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Introducing sphinx-js, a better way to document large JavaScript projects
Go beyond the flat, alphabetical lists of JSDoc, and document your JavaScript libraries in a way that’s easier to learn. As a bonus, keep your old JSDoc syntax.
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Firefox 72 — our first song of 2020
Though we are moving to a more frequent four-week browser release cycle, the Firefox 72 release is feature-rich and full of goodies. It includes many requested DevTools' updates and improvements. We also introduce Shadow Parts and the CSS Motion Path, and useful new JavaScript features. Plus, Picture-in-picture for video is now enabled for Mac and Linux users too!
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Firefox 71: A year-end arrival
Please welcome Firefox 71 to the stage! This time around, we have a plethora of new developer tools features including the web socket message inspector, console multi-line editor mode, log on events, and network panel full text search! And as if that wasn’t enough, there are important new web platform features available, like CSS subgrid, column-span, Promise.allSettled, and the Media Session API.
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The Baseline Interpreter: a faster JS interpreter in Firefox 70
Modern web applications load and execute a lot more JavaScript code than they did just a few years ago. While JIT (just-in-time) compilers have been very successful in making JavaScript performant, we needed a better solution. We’ve added a new, generated JavaScript bytecode interpreter to the JavaScript engine in Firefox 70. Instead of writing a new interpreter from scratch, we found a way to do this by sharing most code with our existing Baseline JIT. Meet the new Baseline Interpreter.
