hashmap VS immutable-js

Compare hashmap vs immutable-js and see what are their differences.


A Golang lock-free thread-safe HashMap optimized for fastest read access. (by cornelk)


Immutable persistent data collections for Javascript which increase efficiency and simplicity. (by immutable-js)
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hashmap immutable-js
8 38
1,624 32,687
- 0.1%
5.3 6.2
about 1 month ago 21 days ago
Go TypeScript
Apache License 2.0 MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of hashmap. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-02-01.


Posts with mentions or reviews of immutable-js. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-07-12.

What are some alternatives?

When comparing hashmap and immutable-js you can also consider the following projects:

Immer - Create the next immutable state by mutating the current one

mori - ClojureScript's persistent data structures and supporting API from the comfort of vanilla JavaScript

ramda - :ram: Practical functional Javascript

lodash - A modern JavaScript utility library delivering modularity, performance, & extras.


immutability-helper - mutate a copy of data without changing the original source

fp-ts - Functional programming in TypeScript

buckets - A complete, fully tested and documented data structure library written in pure JavaScript.

hashmap - HashMap JavaScript class for Node.js and the browser. The keys can be anything and won't be stringified

JSON-Schema Faker - JSON-Schema + fake data generators

Mock.js - A simulation data generator

underscore-contrib - The brass buckles on Underscore's utility belt