There is currently no official 8th Edition released by O'Reilly Media. JavaScript evolves via the TC39 process every year, but full textbook editions typically span several years of language updates.
A common complaint about "The Definitive Guide" is that it is too heavy to read cover-to-cover. That is true. Do not read it like a novel. Use this strategy: Javascript The Definitive Guide 8th Edition Pdf
Read Chapters 1–6. Type into the Node.js REPL or your browser console. Do not copy-paste; muscle memory matters. There is currently no official 8th Edition released
Even without an 8th edition, the current version remains the most comprehensive deep-dive into the language. Unlike many "quick start" tutorials, this book explains the why behind the code. That is true
💡 If you see a site offering an "8th Edition" for download right now, proceed with caution. Check the publisher's official site first to verify the current version number and avoid malware or outdated content. If you'd like, I can help you find: A summary of the biggest changes in the latest edition A reading roadmap for a beginner vs. an expert Alternative books that are updated more frequently