The JavaScript Handbook (2025 edition) One of my most popular handbooks is the JavaScript Handbook. Understandably, as JavaScript is such a popular programming language. I first released this in 2020, 5 years ago. Today I’m releasing an update. Not much changed in the language, to be honest. JavaScript is super stable these days. It’s mostly just cosmetic updates and minor / accuracy fixes, and clarifications, to make this book even better than it already was, and to make it up to date for the next 5 years! Here’s a brief list of changes: Fixed some code examples Fixed some grammar and poor wording choices Modernized async content Type coercion clarification Improved how I explain arrays, and objects Clarified when you can omit braces in arrow functions (single statement) Consolidated default-parameter wording. Improved const/let consistency: const for non-reassigned bindings, let only when reassigned. Kept semicolon style consistent (no semicolons). Download it now from https://flaviocopes.com/access/ Written on Sep 29, 2025 I wrote 20 books to help you become a better developer: JavaScript HandbookTypeScript HandbookCSS HandbookNode.js HandbookAstro HandbookHTML HandbookNext.js Pages Router HandbookAlpine.js HandbookHTMX HandbookReact HandbookSQL HandbookGit Cheat SheetLaravel HandbookExpress HandbookSwift HandbookGo HandbookPHP HandbookPython HandbookLinux/Mac CLI Commands HandbookC Handbook ...download them all now!
First seen: 2025-10-01 22:45
Last seen: 2025-10-01 22:45