A JavaScript Handbook

In plain words

A JavaScript Handbook is a web development resource containing 1,664 handwritten lessons covering JavaScript fundamentals and concepts. Created by Flavio Copes over eight years, the handbook offers comprehensive coverage for developers learning JavaScript from the ground up. The material is organized as a structured manual designed to serve as a reference guide for web development, covering core topics needed to build with JavaScript.

written from the facts on this page · September 2026

From the sources

A Flavio Copes project, yes all the 1,664 lessons have been handwritten in over 8 years with passion and sweat, it's not AI slop. Claude Code estimated 5,000 hours of work to write them, that's 2.5 yearsfrom jshandbook.com

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