The Cost Of JavaScript In 2018 1482 retweets

Building interactive sites can involve sending JavaScript to your users. Often, too much of it. Have you been on a mobile page that looked like it had loaded only to tap on a link or tried to scroll…

Calls between JavaScript and WebAssembly are finally fast 🎉 1085 retweets

Function calls between JavaScript and WebAssembly are finally fast! 🎉 wasm » JS 🔥 ~750ms → 450ms JS » wasm 🔥 ~5500ms → 450ms monomorphic JS » wasm 💥 ~5250ms → 250ms wasm » built-in 🔥 ~5750ms → 600ms See how we did it →

JavaScript Loading Priorities in Chrome 972 retweets

Addy Osmani is an engineering manager at Google working on Chrome. He is author of open-source projects like Yeoman, TodoMVC and Material Design Lite. He has also written books like Learning JavaScript Design Patterns with O'Reilly.

The Cost Of JavaScript – Dev Channel – Medium 797 retweets

As we build sites more heavily reliant on JavaScript, we sometimes pay for what we send down in ways that we can’t always easily see. In this post, I’ll cover why a little discipline can help if…

10 JavaScript string methods you should know 708 retweets

startsWith() endsWith() includes() slice() toUpperCase() toLowerCase() charAt() split() replace() repeat()

a visualization library to convert any JavaScript code into beautiful ... 636 retweets

GitHub - Bogdan-Lyashenko/js-code-to-svg-flowchart: js2flowchart - a visualization library to convert any JavaScript code into beautiful SVG flowchart. Learn other’s code. Design your code. Refactor code. Document code. Explain code.

Reduce JavaScript Payloads with Tree Shaking 606 retweets

Knowing where to begin optimizing your application's JavaScript can be daunting. If you're taking advantage of modern tooling such as webpack, however, tree shaking might be a good place to start!

Reduce JavaScript Payloads with Code Splitting 532 retweets

Modern sites often contain a lot of JavaScript. These scripts are often sent down in large, monolithic bundles which can take a long time to download and process. Code-splitting encourages breaking up these scripts so you only send what a user needs ...

JavaScript for impatient programmers 514 retweets

My new book is out: “JavaScript for impatient programmers”

Moving Java Forward Faster | Mark Reinhold 492 retweets

Moving Java Forward Faster:

JavaScript for impatient programmers (beta) 484 retweets

.map/.filter/.reduce illustrated (inspired by a tweet by steveluscher): > [🌾,🥩,🥛,🍅].map(prepare) [🍞,🥓,🧀,🥗] > [🌾,🥩,🥛,🍅].filter(isVegan) [🌾,🍅] > [🍞,🥓,🧀,🥗].reduce(combine) 🥪

Prepack · Partial evaluator for JavaScript 483 retweets

Prepack, a partial JavaScript evaluator and optimising compiler we've developed at FB, has just been open sourced!

Experimenting with brain-computer interfaces in JavaScript. 474 retweets

I've been writing and rewriting this post for more than a year, trying to make it perfect and I've finally decided to stop and just post it! ✍️👩‍💻

Code caching for JavaScript developers · V8 463 retweets

In Chrome, any JavaScript files in a service worker cache are bytecode-cached automatically. This means there is 0 parse + compile cost for them on repeat visits. 🤯

Java Collections Cheat Sheet | JRebel.com 450 retweets

Every Java program tends to have one thing in common. They’ll all use Java collections! They’re so fundamental, we could not even avoid thinking to omit them from out RebelLabs cheat sheet collection. This is a tough challenge, since there's so much ...

Loading Third-Party JavaScript 443 retweets

📝 New! Loading Third-party JavaScript 🕵️‍♀️ Use DevTools & Lighthouse to identify costly 3P scripts 👍 Efficiently load them to improve performance 🙅 Don't inject scripts with document.write()! 🕐 Use RUM & Long Tasks to report slowness

create-react-app now warns if JavaScript bundles exceed 500KB. 🔥 work ... 426 retweets

create-react-app now warns if JavaScript bundles exceed 500KB. 🔥 work by dan_abramov on perfmatters awareness.

JavaScript End to End Testing Framework 397 retweets

So excited to see that is finally out of private beta and open to everyone! Finally e2e testing for the modern web🎺

Java EE Moves to the Eclipse Foundation 377 retweets

Oracle announced today that they, along with IBM and Red Hat, will be moving Java EE to the Eclipse Foundation. I would like to welcome everyone involved to our community. We look forward to working with all of the participants in the Java EE ecosyst...