初中階 1. requestAnimationFrame 和 setTimeout 的差異？ // setTimeout：固定時間後執行，不管瀏覽器在不在渲染 setTimeout(() => updateDOM(), 16); // 希望模擬 60fps // rAF：在瀏覽器下一次渲染前執行 requestAnimationFrame(() =>
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Howard Lee is a Staff Software Engineer based in Taipei, specializing in frontend architecture, CI/CD, and production-quality engineering for enterprise web applications. With 13+ years of software development experience, Howard has worked across B2B SaaS, IoT energy-management platforms, online travel marketplaces, and Android applications. His work focuses on modernizing large frontend systems, improving delivery quality, and building reliable product workflows with automated testing, observability, and practical cloud/platform integration. Core Expertise Frontend architecture: Angular 5 to 19 modernization, TypeScript, JavaScript, React, Next.
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