finalizelike

finalizelike is a software library developed for the JavaScript ecosystem that simplifies the implementation of "like" interactions in web applications. The library abstracts common patterns associated with optimistic UI updates, concurrency control, and persistence of like counts. It is distributed under the MIT license and can be installed via npm or yarn.

The core API offers a single function, `finalizelike(element, options)`, which attaches event listeners to a DOM element, manages visual feedback, and synchronizes data with a backend server. Developers can specify options such as the endpoint URL, request method, and debouncing interval. The library automatically handles retry logic for transient network failures and updates the UI to reflect the current state.

Released in 2021 by the open‑source community, finalizelike has been adopted by several commercial projects that require a lightweight solution for like buttons, including e‑commerce product pages and social-media feeds. Its lightweight footprint (under 3 kB when minified) makes it suitable for mobile browsers.

The project maintains an active issue tracker and has Contributions guidelines that welcome community enhancements. Since its release, finalizelike has accumulated over 500 stars on GitHub, with contributions from more than 30 developers worldwide. The library continues to be actively maintained, with regular minor releases that add features such as multi‑language support and customizable animation hooks.