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The Expert’s Guide to Javascript: Mastering Uncommon but Powerful Techniques
JavaScript’s most powerful capabilities often live at the edges of the spec, where few teams venture. This book is for senior engineers, library authors, and performance‑sensitive product teams who are fluent in modern JS but want sharper control of correctness, latency, and bundle size. It turns uncommon features into repeatable engineering practice—so you can ship faster startups, safer data paths, and resilient async systems—without sacrificing readability, testability, or portability across browsers, Node, Deno, and Bun.
Core topics include import attributes and JSON modules; deep ESM engineering with cycles, conditional exports, dynamic import, and top‑level await; iterator helpers and protocol‑level craftsmanship, including Array.fromAsync, backpressure, and cancellation; event‑loop mechanics with microtasks vs macrotasks and Promise.try; explicit resource management (using/await using); regex via RegExp.escape and inline modifiers; Float16 arrays and binary I/O; new Set operations and cross‑realm error/equality checks; and baseline‑driven rollout. You’ll build lazy pipelines, achieve deterministic cleanup, eliminate timing heisenbugs, harden supply chains, and ship reproducible builds at scale.
solid command of modern JavaScript/TypeScript, async/await, ESM, and testing. The book is standards‑aligned, example‑driven, and production‑focused, emphasizing determinism, performance measurement, and cross‑runtime portability with checklists, failure‑mode analyses, and patterns you can adopt without wholesale rewrites.
Core topics include import attributes and JSON modules; deep ESM engineering with cycles, conditional exports, dynamic import, and top‑level await; iterator helpers and protocol‑level craftsmanship, including Array.fromAsync, backpressure, and cancellation; event‑loop mechanics with microtasks vs macrotasks and Promise.try; explicit resource management (using/await using); regex via RegExp.escape and inline modifiers; Float16 arrays and binary I/O; new Set operations and cross‑realm error/equality checks; and baseline‑driven rollout. You’ll build lazy pipelines, achieve deterministic cleanup, eliminate timing heisenbugs, harden supply chains, and ship reproducible builds at scale.
solid command of modern JavaScript/TypeScript, async/await, ESM, and testing. The book is standards‑aligned, example‑driven, and production‑focused, emphasizing determinism, performance measurement, and cross‑runtime portability with checklists, failure‑mode analyses, and patterns you can adopt without wholesale rewrites.
384 pages, Kindle Edition
Published October 23, 2025
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