HTMP Library Brings React-Like Reactivity to a Single HTML File at 2.9 kB

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A lightweight library called HTMP enables reactive UI behavior — including counters, todo lists, and live form updates — directly inside a single HTML file with no build tools or package managers required. The zero-dependency engine weighs just 2.9 kB gzipped and works in any browser, including via a local file:// URL. HTMP is built on three core concepts: an HTML template parsed by the browser's native DOMParser, a reactive state object powered by JavaScript's Proxy, and plain event-handler functions. It offers a lifecycle API with mount, unmount, remount, and destroy methods, making it suitable for single-page apps and embeddable widgets. The library is aimed primarily at PHP, WordPress, and legacy-stack developers who need client-side interactivity without adopting a full JavaScript framework.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingHacker News ·

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