What is this?
A Chinese-language frontend blog by developer mqyqingfeng (冴羽), known for its in-depth JavaScript article series; it began in 2017 with four planned series and has since grown far beyond them, collecting 31k+ stars.
A Chinese-language frontend blog by developer mqyqingfeng (冴羽), known for its in-depth JavaScript article series; it began in 2017 with four planned series and has since grown far beyond them, collecting 31k+ stars.Is this software I install, or just articles to read?Pure reading material — a table of contents linking Markdown articles by series, with no code to install, build or run, and everything written in Chinese.
Pure reading material — a table of contents linking Markdown articles by series, with no code to install, build or run, and everything written in Chinese.What are the main series, and where should I start?Start with the classic JavaScript In-Depth series (prototypes, closures, this), then the Topics series (debounce, throttling, deep copy) and the 20-post ES6 series; a 15-post React source-reading series goes deeper still.
Start with the classic JavaScript In-Depth series (prototypes, closures, this), then the Topics series (debounce, throttling, deep copy) and the 20-post ES6 series; a 15-post React source-reading series goes deeper still.Is everything on the blog free?The repo articles are free, but they are only part of the author's output: the Next.js, Svelte and Astro booklets and the paid community (100+ long-form posts) are separate paid products.
The repo articles are free, but they are only part of the author's output: the Next.js, Svelte and Astro booklets and the paid community (100+ long-form posts) are separate paid products.Is this aimed at beginners or experienced developers?Intermediate-to-advanced frontend developers: the deep dives assume JS fundamentals, and a dedicated interview series offers Taobao recruiting guides for both campus and experienced hires.
Intermediate-to-advanced frontend developers: the deep dives assume JS fundamentals, and a dedicated interview series offers Taobao recruiting guides for both campus and experienced hires.Can I reuse or republish the articles?Yes, under CC BY-NC-SA 3.0 China: share and adapt freely with attribution, non-commercially, under the same license.
Yes, under CC BY-NC-SA 3.0 China: share and adapt freely with attribution, non-commercially, under the same license.Is the blog still active?Yes — the README lists recent 2025-2026 pieces alongside the classics: frontend trend roundups, a weekly digest covering TypeScript 7.0 and Bun, Vercel React performance write-ups, and a Nano Banana Pro prompt series.
Yes — the README lists recent 2025-2026 pieces alongside the classics: frontend trend roundups, a weekly digest covering TypeScript 7.0 and Bun, Vercel React performance write-ups, and a Nano Banana Pro prompt series.What else has the author published besides this repo?Chinese translations of the TypeScript, Svelte and Solid.js documentation, three paid booklets (Next.js, Svelte and Astro guides), two WeChat public accounts, and a paid community billed as 8 columns, 100+ deep articles and 10 years of experience.
Chinese translations of the TypeScript, Svelte and Solid.js documentation, three paid booklets (Next.js, Svelte and Astro guides), two WeChat public accounts, and a paid community billed as 8 columns, 100+ deep articles and 10 years of experience.Does it cover modern frontend topics or only old JS fundamentals?Both — beyond the ES5-era deep dives there are posts on React 19 hooks, Next.js v14/v15 and Server Actions, 2026 JavaScript, CSS and framework trends, AI-assisted coding guides, and modern CSS color and layout techniques.
Both — beyond the ES5-era deep dives there are posts on React 19 hooks, Next.js v14/v15 and Server Actions, 2026 JavaScript, CSS and framework trends, AI-assisted coding guides, and modern CSS color and layout techniques.Why is this repo so popular?Its JavaScript In-Depth series is widely used as interview preparation in the Chinese frontend community: spec-grounded takes on prototype chains, execution context and closures, plus hand-written implementations of call, bind and new.
Its JavaScript In-Depth series is widely used as interview preparation in the Chinese frontend community: spec-grounded takes on prototype chains, execution context and closures, plus hand-written implementations of call, bind and new.What are similar projects?markyun, blog, react-redux-links, fe-interview, Awsome-Front-End-learning-resource, CS-Interview-Knowledge-Map, top-javascript-interview-questions, 33-js-concepts
markyun, blog, react-redux-links, fe-interview, Awsome-Front-End-learning-resource, CS-Interview-Knowledge-Map, top-javascript-interview-questions, 33-js-conceptsWhich topics is it in?advanced, astro, blog, es6, svelte, interview, curriculum, interview-preparation, nextjs, guide, learning-resources, learning
advanced, astro, blog, es6, svelte, interview, curriculum, interview-preparation, nextjs, guide, learning-resources, learning