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Modern JavaScript Handbook
Variables, Functions, Modules, Promises, Async Await, Classes, Iterators and the Language Features You Use Daily
German
64 b
New
JavaScript runs everywhere, yet most developers learned it from tutorials written in different decades, so old habits and new features sit side by side in the same codebase. This handbook gives you one consistent, current picture of the core language. You will learn why const and let replace var, how this is decided, what closures really keep alive, and how modules, promises and async await fit together. Further chapters cover classes, iterators and generators, destructuring and spread, and error handling that preserves the cause. Every example was run on a current Node.js release, features that need a recent engine are flagged, and a closing order-import project ties the pieces together. A quick reference, troubleshooting table and review questions help you use it at your desk.
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