We provide high-quality technical articles on client, server, algorithms, testing, data, front-end, and more, including both original and translated content.
This article introduces React Hooks, explains how they enable state and other React features without classes, provides official resources, outlines migration advice, details supported packages, tooling integrations, testing APIs, installation methods, and summarizes the changelog and post‑alpha updates for the stable 16.8 release.
Dan Abramov announced revised interview expectations for front‑end engineers, emphasizing practical JavaScript skills, performance awareness, core data structures, and a solid grasp of language fundamentals without requiring specific library knowledge, to help candidates better prepare for Facebook‑style interviews.
The article examines the perceived conflict between JavaScript and CSS/UX developers, explains how community segregation and social media amplify the divide, and proposes practical steps for fostering collaboration and reducing the "JS vs CSS" war in front‑end development.
The article introduces the major ES2018 additions—including rest/spread properties, asynchronous iteration, Promise.prototype.finally, and four RegExp enhancements—explains their syntax and usage with examples, and lists Node.js versions that support each feature, helping developers adopt the latest JavaScript capabilities.
This article explains how front‑end developers can analyze and shrink their JavaScript bundles by using Chrome DevTools, Lighthouse’s unused‑code audit, and visual tools such as Webpack Bundle Analyzer, and provides practical tips for removing unused or unnecessary libraries.
Google Public DNS now fully supports DNS over HTTPS, enhancing privacy and security with minimal performance impact, while the article explains why DNS needs encryption, how DoH works, browser support, and practical considerations for adoption.
The article explains how the Server‑Timing HTTP header can be used to transmit arbitrary server‑side metrics to the client, shows how to send multiple timing values, demonstrates Chrome DevTools support, warns about exposing sensitive data, and introduces a small hapi plugin that simplifies adding the header.
The article explores the fundamental problems of UI engineering—consistency, responsiveness, latency, navigation, caching, accessibility, internationalisation, transport, resilience, abstraction, and prioritisation—encouraging developers to solve them by building small, library‑free prototypes to deepen their understanding of trade‑offs.
In this reflective essay, Dan Abramov lists numerous programming topics—from Unix commands and low‑level languages to containers, serverless, microservices, and functional concepts—that he admits to not fully mastering, highlighting the inevitable knowledge gaps even experienced engineers face.
This article introduces Chrome DevTools console shortcuts—including $0‑$4 for element references, $ and $$ for query selectors, $_ for the last expression result, and $i for importing npm libraries—explaining their usage to streamline front‑end debugging and testing.
