Immutable.js vs Underscore: What are the differences?
"Immutable data structures" is the top reason why over 6 developers like Immutable.js, while over 83 developers mention "Utility" as the leading cause for choosing Underscore.
Immutable.js and Underscore are both open source tools. Immutable.js with 27.6K GitHub stars and 1.6K forks on GitHub appears to be more popular than Underscore with 24.6K GitHub stars and 5.41K GitHub forks.
Pinterest, LinkedIn, and Coursera are some of the popular companies that use Underscore, whereas Immutable.js is used by Instagram, Rove.me, and Broadly. Underscore has a broader approval, being mentioned in 1047 company stacks & 76 developers stacks; compared to Immutable.js, which is listed in 20 company stacks and 11 developer stacks.
Fast Healthcare Interoperability Resources (FHIR) provides standard data objects in JSON format for the healthcare industry. Since JSON objects are hierarchical and tree-like, we had a need to defensively 'pluck' fields from our JSON objects and do lots of mapping. We tried jQuery and Underscore and a few other technologies like FHIRPath; but Lodash has been the most well supported, works in the most contexts, has the cleanest syntax, etc. We particularly like the ES6 version of Lodash, where we can
import the method names directly, without resorting to * or _ syntax. We got hooked on the 'get' function to defensively pluck fields from objects without crashing our user interface, and have found countless uses for the other lodash functions throughout our apps.
Lodash is great for developing and optimizing algorithms.
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