ES proposal: Shared memory and atomics
The ECMAScript proposal “Shared memory and atomics” by Lars T. Hansen has reached stage 4 this week and will be part of ECMAScript 2017. It introduces a new constructor SharedArrayBuffer and a namespace object Atomics with helper functions. This blog post explains the details. Update 2017-02-24: Complete rewrite of Sect. 4, “Atomics: safely accessing shared data”. Parallelism vs. concurrency # Be
Native ECMAScript modules - the first overview
All the major browsers shipped the native JavaScript modules support out of the box: which means, the time we can use them without module bundlers/transpilers has come. To understand better how we come to this point let’s start from the JS modules history and then take a look at the current Native ES modules features. ...
A Prettier JavaScript Formatter
Today I am announcing prettier, a JavaScript formatter inspired by refmt with advanced support for language features from ES2017, JSX, and Flow. Prettier gets rid of all original styling and guarantees consistency by parsing JavaScript into an AST and pretty-printing the AST. Unlike eslint, there aren't a million configuration options and rules. But more importantly: everything is fixable. I'm exc
History API - Scroll restoration | Blog | Chrome for Developers
Using the History API to manage your URLs is awesome and, as it happens, a crucial feature of good web apps. One of its downsides, however, is that scroll positions are stored and then, more importantly, restored whenever you traverse the history. This often means unsightly jumps as the scroll position changes automatically, and especially so if your app does transitions, or changes the contents o
How Do We Get Along With Static Types
Tokyo Node Fest 2016 by gfx
The Taxonomy of Reactive Programming
Victor Savkin is a co-founder of nrwl.io, providing Angular consulting to enterprise teams. He was previously on the Angular core team at Google, and built the dependency injection, change detection, forms, and router modules. We all build user interfaces using some form of reactive programming. A new todo was added? We need to render it on the screen. Someone changed the todo’s title? We need to
Integrate with the OS sharing UI with the Web Share API | Articles | web.dev
Integrate with the OS sharing UI with the Web Share API Stay organized with collections Save and categorize content based on your preferences. Web apps can use the same system-provided share capabilities as platform-specific apps. With the Web Share API, web apps are able to use the same system-provided share capabilities as platform-specific apps. The Web Share API makes it possible for web apps
Using requestIdleCallback | Blog | Chrome for Developers
Many sites and apps have a lot of scripts to execute. Your JavaScript often needs to be run as soon as possible, but at the same time you don’t want it to get in the user’s way. If you send analytics data when the user is scrolling the page, or you append elements to the DOM while they happen to be tapping on the button, your web app can become unresponsive, resulting in a poor user experience. Th
Tips for using async functions (ES2017)
This blog post gives tips for using async functions. If you are unfamiliar with them, you can read chapter “Async functions” in “Exploring ES2016 and ES2017”. Know your Promises # The foundation of async functions is Promises. That’s why understanding the latter is crucial for understanding the former. Especially when connecting old code that isn’t based on Promises with async functions, you ofte
Proper Error Handling
No matter how good you are as a developer and how many tests you write: your application will throw errors. At YPlan we tried to catch all the exceptions and handle them in the right way to give our users the best possible experience. In this talk, I will go through the problems we tried to solve and the solutions we implemented #forreal
Home page | Yarn
Yarn is a package manager that doubles down as project manager. Whether you work on simple projects or industry monorepos, whether you're an open source developer or an enterprise user, Yarn has your back. This documentation covers Yarn 4+. For the previous documentation dedicated to 3.6 and below, please refer to v3.yarnpkg.com. WorkspacesFirst package manager built specifically around workspaces
npm Blog Archive: Hello, Yarn!
The npm blog has been discontinued. Updates from the npm team are now published on the GitHub Blog and the GitHub Changelog. Today, Facebook announced that they have open sourced Yarn, a backwards-compatible client for the npm registry. This joins a list of other third-party registry clients that include ied, pnpm, npm-install and npmd. (Apologies if we missed any.) Yarn’s arrival is great news fo
Why I'm Working on Yarn
(This post is about Yarn, a new JS package manager that was announced today.) I work with Node and npm packages almost every day, on Tilde's main app, Skylight, or on one of Ember's many packages. Many have remarked upon how fast the npm registry has grown, and it's hard to imagine working on any of my packages without the npm ecosystem. I've also worked on a couple of application-level package ma
Yarn: A new package manager for JavaScript
In the JavaScript community, engineers share hundreds of thousands of pieces of code so we can avoid rewriting basic components, libraries, or frameworks of our own. Each piece of code may in turn depend on other pieces of code, and these dependencies are managed by package managers. The most popular JavaScript package manager is the npm client, which provides access to more than 300,000 packages
What every JavaScript developer should know about Unicode
This story starts with a confession: I was afraid of Unicode for a long time. When a programming task required Unicode knowledge, I was searching for a hackable solution for the problem, without a good understanding of what I was doing. My avoidance continued until I faced a problem that required detailed Unicode knowledge. There was no way to apply situational solutions. After putting in some eff
State of JavaScript
State of JavaScript The annual developer survey of the JavaScript ecosystem The JavaScript world could use a bit of classification. Since 2016, this survey has collected data from over 20,000 developers each year to identify current and upcoming trends. Together, let's find out which libraries developers want to learn next, which have the best retention ratings, and much more.
ES proposal: `global`
Warning: This blog post is outdated. Instead, read section “globalThis” in “JavaScript for impatient programmers”. The ECMAScript proposal “global” by Jordan Harband is currently at stage 3. It provides a new standard way of accessing the global object. Referring to the global object # The following are a few popular ways of referring to the global object: Global variables: Global variable window
ES6 Generators Deliver Go Style Concurrency
24 August 2013 Last night I expressed some frustration about the state and future of concurrency in JavaScript. I ended up having a little bit of back and forth with David Herman and he pointed out that ES6 Generators can express Go and core.async’s flavor of CSP. Now I had thought about this in the past but I could not see how. Part of this was that I’d never seen how a CSP system works under the
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Bridging the Network Divide