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Abstract Reflex is a new programming language for reactive programming developed at Facebook. It has many interesting characteristics, mixing OO and functional programming, it allows rapid development of applications with “spreadsheet semantics”.
After we released webpack v2, we made some promises to the community. We promised that we would deliver the features you voted for. Moreover, we promised to deliver them in a faster, more stable release cycle. No more year-long betas, no breaking changes between release candidates. We promised to do you right by you, the community that makes webpack thrive. The webpack team is proud to announce th
Another long break! Oh, hey! I didn't see you sitting there. You look bored. How about a Redux release to spice things up? Not a huge set of changes to report here. The biggest change, and the reason for the minor bump, is the UMD build is now done via Rollup. One big advantage is more readable code in the bundle. Rollup does "scope hoisting", which is a fancy term for putting every module at the
Last year, we told you exactly who we are (Twitter is what’s happening!) and refreshed our brand. Today, with lots of feedback and ideas from you, we’re refreshing our product too and making it feel lighter, faster, and easier to use. We listened closely and kept what you love. And for the things you didn’t, we took a new approach to fix and make better. Our new look: These are some of the changes
Come check out our new digs at 999 Brannan, our second office in San Francisco! We’d been using Mocha at Airbnb since September 2013, but due to increasing growing pains, we’ve recently migrated from Mocha to Jest. The migration actually turned out to require minimal changes to our tests and infrastructure, and provided a myriad of benefits. Minimal Changes to TestsWe’ve put significant effort int
requestIdleCallback() Cooperative Scheduling of Background Tasks W3C Working Draft 28 June 2022 More details about this document This version: https://www.w3.org/TR/2022/WD-requestidlecallback-20220628/ Latest published version: https://www.w3.org/TR/requestidlecallback/ Latest editor's draft:https://w3c.github.io/requestidlecallback/ History: https://www.w3.org/standards/history/requestidlecallba
This is the 3rd article in a 3-part series: A crash course in memory management A cartoon intro to ArrayBuffers and SharedArrayBuffers Avoiding race conditions in SharedArrayBuffers with Atomics In the last article, I talked about how using SharedArrayBuffers could result in race conditions. This makes working with SharedArrayBuffers hard. We don’t expect application developers to use SharedArrayB
This is the 2nd article in a 3-part series: A crash course in memory management A cartoon intro to ArrayBuffers and SharedArrayBuffers Avoiding race conditions in SharedArrayBuffers with Atomics In the last article, I explained how memory-managed languages like JavaScript work with memory. I also explained how manual memory management works in languages like C. Why is this important when we’re tal
If you want to run automated tests using Headless Chrome, look no further! This article will get you all set up using Karma as a runner and Mocha+Chai for authoring tests. What are these things? Karma, Mocha, Chai, Headless Chrome, oh my! Karma is a testing harness that works with any of the most popular testing frameworks (Jasmine, Mocha, QUnit). Chai is an assertion library that works with Node
Some of the updates described here are explained in the Google I/O session, Secure and Seamless Sign-In: Keeping Users Engaged: Chrome 57 Chrome 57 introduced this important change to the Credential Management API. Credentials can be shared from a different subdomain Chrome can now retrieve a credential stored in a different subdomain using the Credential Management API. For example, if a password
There are a variety of strategies for protecting your important online credentials. We often hear about password managers and generators, but for me, the more important strategy is using two-factor authentication (2FA). Passwords can be guessed, phone numbers can be spoofed, but using two-factor authentication essentially requires that user be in possession of a physical device with an app like
This blog site has been archived. Go to react.dev/blog to see the recent posts. Today we are releasing React 15.6.0. As we prepare for React 16.0, we have been fixing and cleaning up many things. This release continues to pave the way. Improving Inputs In React 15.6.0 the onChange event for inputs is a little bit more reliable and handles more edge cases, including the following: not firing when r
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