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Immutable.js
Immutable.js

125
70
+ 1
15
Prepack
Prepack

20
49
+ 1
3
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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.

What is Immutable.js?

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?

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.
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        What are some alternatives to Immutable.js and Prepack?
        Lodash
        A JavaScript utility library delivering consistency, modularity, performance, & extras. It provides utility functions for common programming tasks using the functional programming paradigm.
        Ramda
        It emphasizes a purer functional style. Immutability and side-effect free functions are at the heart of its design philosophy. This can help you get the job done with simple, elegant code.
        Modernizr
        It’s a collection of superfast tests or detects as we like to call them which run as your web page loads, then you can use the results to tailor the experience to the user. It tells you what HTML, CSS and JavaScript features the user’s browser has to offer.
        Modernizr
        It’s a collection of superfast tests or detects as we like to call them which run as your web page loads, then you can use the results to tailor the experience to the user. It tells you what HTML, CSS and JavaScript features the user’s browser has to offer.
        fancybox
        It is a tool that offers a nice and elegant way to add zooming functionality for images, html content and multi-media on your webpages. It is built on the top of the popular JavaScript framework jQuery and is both easy to implement and a snap to customize.
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