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Immutable.js vs Prepack: What are the differences?
What is Immutable.js? Immutable persistent data collections for Javascript which increase efficiency and simplicity, by Facebook. Immutable provides Persistent Immutable List, Stack, Map, OrderedMap, Set, OrderedSet and Record. They are highly efficient on modern JavaScript VMs by using structural sharing via hash maps tries and vector tries as popularized by Clojure and Scala, minimizing the need to copy or cache data.
What is Prepack? A tool for making JavaScript code run faster (by Facebook). Prepack is a partial evaluator for JavaScript. Prepack rewrites a JavaScript bundle, resulting in JavaScript code that executes more efficiently. For initialization-heavy code, Prepack works best in an environment where JavaScript parsing is effectively cached.
Immutable.js and Prepack can be categorized as "Javascript Utilities & Libraries" tools.
Immutable.js and Prepack are both open source tools. Immutable.js with 27.8K GitHub stars and 1.61K forks on GitHub appears to be more popular than Prepack with 13.7K GitHub stars and 463 GitHub forks.
Pros of Immutable.js
- Immutable data structures8
- Allows you to mimic functional programming5
- Bring the functional experience to JS2
- Makes writing Javascript less scary1
- Easily transpiles to different ES standards1
Pros of Prepack
- Available as NPM1
- Gulp package available1
- Easy setup but has a very limited range of use cases1