2024.06.24 - How React 19 (Almost) Made the Internet Slower

Title: 2024.06.24 - How React 19 (Almost) Made the Internet Slower

10x developer & 中国故事 & 独处 & 观天之道 & 重拾松弛感

This Week’s Highlights

How React 19 (Almost) Made the Internet Slower https://blog.codeminer42.com/how-react-19-almost-made-the-internet-slower/
Earlier this year, the much‑anticipated React 19 was announced, but along with all the shiny new features and DX improvements, there was a small change that went unnoticed until last week that could potentially degrade the performance of many React‑based websites in a significant way. Related: React 19 and Suspense – A Drama in 3 Acts .

How We Made the Deno Language Server Ten Times Faster https://deno.com/blog/optimizing-our-lsp
Recently, a customer reported serious performance issues with our language server on large codebases. Their feedback prompted us to investigate and optimize the server, cutting auto‑completion times from 8 seconds to under one second. This post details how we identified the problem and implemented the solution. Related: How the Guardian uses Deno to audit accessibility and performance across their 2.7 million articles .

The real 10x developer makes their whole team better https://stackoverflow.blog/2024/06/19/the-real-10x-developer-makes-their-whole-team-better/
A single individual influences the success or failure of a tech project far less than you might think (and that’s a good thing).

Generating audio for video https://deepmind.google/discover/blog/generating-audio-for-video/
Video‑to‑audio research uses video pixels and text prompts to generate rich soundtracks.

Deep Reads

Visual testing: The greatest trick in UI development https://storybook.js.org/blog/visual-testing-is-the-greatest-trick-in-ui-development/
Get more confidence with less maintenance.

How JavaScript Is Finally Improving the Module Experience https://thenewstack.io/how-javascript-is-finally-improving-the-module-experience/
A set of long‑term proposals collectively called “module harmony” will restore features lost as JavaScript moved away from CommonJS.

Execute commands by sending JSON? Learn how unsafe deserialization vulnerabilities work in Ruby projects https://github.blog/2024-06-20-execute-commands-by-sending-json-learn-how-unsafe-deserialization-vulnerabilities-work-in-ruby-projects/
Can an attacker run arbitrary commands on a remote server just by sending JSON? Yes—if the code contains unsafe deserialization vulnerabilities. This post explains how those vulnerabilities work and how to detect them in Ruby projects.

How free software hijacked Philip Hazel's life https://lwn.net/SubscriberLink/978463/608c876c1153fd31/
Philip Hazel was 51 when he started the Exim MTA project in 1995, which later led to the PCRE project in 1998. At 80, he’s maintained PCRE and its successor PCRE2 for more than 27 years—about a year longer than LWN has been publishing. Exim maintenance was handed off around his 2007 retirement. Now he’s ready to pass on PCRE2 as well, if a successor can be found.

Fresh Releases

Electron 31.0.0 Announcing TypeScript 5.5 htmx 2.0.0 has been released! Relay 17.0 PouchDB 9.0.0 NLUX: The Powerful Conversational AI JavaScript Librar Eicrud: A TypeScript back‑end framework for building secure and scalable web applications.

What happens when a major npm library goes commercial? A startup incubated by Yuanfudao aims to use AI to disrupt design giant Figma NumPy 2.0.0 Release Notes

Products & Others

周鸿祎的狐狸尾巴 https://mp.weixin.qq.com/s/nIKfNWAT2Tt7Ka3xCG5JVA
Playing with traffic is extremely dangerous because traffic is backed by emotions.

节气说 | 夏至：独处的功夫 https://mp.weixin.qq.com/s/h42gEpYR1es6UwvSmp-rkw https://mp.weixin.qq.com/s/E_EaGtvv7SU8pSnHW_ztvw https://mp.weixin.qq.com/s/Ff7ImncZl8802zbidfH7zw
Our lives have two orientations: outward and inward. Releasing outward is instinctual; collecting inward is nurturing. We need to look inward more, clearing and rebuilding internal energy. As the poet Ye Jiaying said, “Set aside troubles and joy appears; the world seldom finds true joy.” Gradually we realize that the happiness we seek isn’t outside—it lives within the heart.

运用中华优秀传统文化讲好中国故事 https://mp.weixin.qq.com/s/6Byd-qtZ_O55MavNaPmHLQ
Looking back, what has carried our ancient nation through blood and fire for millennia is the cultural DNA rooted deep in the Chinese people. By inheriting and promoting this unique cultural DNA in line with the times, we have built a cultural subjectivity that allows us to call our culture “Chinese” and our stories “Chinese.” This subjectivity lets our culture hold its own in the global cultural swirl and lets our civilization bloom in the world’s garden of cultures.

这本书泄露了修道天机，以前得道成仙的人都在看！ https://mp.weixin.qq.com/s/rsFOudfmfp9Xbf4pdMqJKQ
Observe the Way of Heaven, act according to Heaven; that is the whole. The Yin Fu Jing is concise, uses striking language, and is packed with profound insight—every word a gem. It weaves ideas from the I‑Ching, Laozi, Sunzi, and others, serving both as philosophy and self‑cultivation text. Zhu Xi said, “Only those who are deep in the Dao can write it,” and his words ring true.

国潮运动正当时，找回失去的直觉和本能 https://mp.weixin.qq.com/s/O4eKkSanEpx00oh96RIIkg
When you hear “exercise,” what comes to mind? A sweaty gym session? A marathon? Or weight‑training? Modern life often separates body and spirit. To reclaim lost instincts and find a suitable exercise style, we asked Dr. Xiaoyao for an article explaining what kinds of movement suit today’s people.

这张妙方专治久咳不愈 https://mp.weixin.qq.com/s/q1TndUJe60e9U9KBFhNgxQ
Salvia and sweet flag aren’t just “heart herbs”—they relate to coughing because the heart governs the flow of the five organs. If the heart’s channels are blocked by blood stasis or phlegm, recovery stalls. Many older adults with chronic cough have heart‑channel obstruction; without clearing it, the lungs lack the strength to expel the pathogen. The heart and lungs co‑reside in the upper burner and must work together. Strengthening the heart aids lung healing.

近半年，我是如何重拾松弛感的？ https://www.yuque.com/lingyi-1ifg9/ph7w7x/lpcxxfw26ccrdrk2
After going through various experiences, I began to see my own limits clearly and started to accept them, turning inward rather than outward. This made me feel steadier and more focused. When moods dip, don’t flee—face them head‑on, because avoidance drains energy, which then hampers handling more important matters. Those who can bravely confront themselves become different; problems may still arise, but they forge a better self.

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Originally written by Ping Xia (平侠) and published in Chinese on Web技术周刊 (Web Tech Weekly). Translated and adapted for DriftSeas with permission.