hashmap VS immutable-js

hashmap

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Tracking mentions began in Dec 2020.

immutable-js

• Yet another introduction to Functional Programming
  3 projects | dev.to | 12 Jul 2023

  immutable for JavaScript.

• Imutability, react and typescrip: how to do it the clean way?
  2 projects | /r/reactjs | 8 Apr 2023

  Check out Object.freeze. There's also Immutable.js for working with immutable data.

• How To Scale Your React Applications
  5 projects | dev.to | 7 Apr 2023

  Use immutability to manage state updates When updating state in your React application, it's important to ensure that you are not mutating the original state object. Instead, you should create a new copy of the state object with the updated values. Immutability makes it easier to manage state updates and ensures that the updates are performed in a predictable and safe manner. Libraries like Immutable.js provide a set of functions that simplify working with immutable data in React applications.

• Is it possible to strongly type properties of class dynamically added in the constructor?
  1 project | /r/typescript | 17 Jan 2023

  We're wanting to get rid of immutable so I'm trying to replicate what it is about the Record functionality and types that allow this dynamic property access to work. After pulling my hair out looking through the [email protected] type definitions and the actual code, to me it looks like the types are just kind of lying about what's going on ... and it's just working. Does anyone have any ideas how I can replicate this dynamic property access with strong typings?

• Functional immutable game state
  4 projects | dev.to | 16 Jan 2023

  The Immutable.js README has a much more complete description of immutability and why you might want to use the library. Also worth mentioning that Immer is an alternative which is a bit easier to get started with.

• "console.log" Sometimes Print Wrong Data
  2 projects | dev.to | 5 Jan 2023

  Examples: immutable-js Immer

• Immutable Collections should be Your Default
  2 projects | /r/programming | 28 Oct 2022

  I can't speak to C# and Java, but the suggestion in this post: ImmutableJS already uses Persistent data structures. (It's the second sentence of their introduction)

• How do I type reduce when Im reducing an array to count elements?
  1 project | /r/typescript | 11 Oct 2022

  Avoiding mutation is just never modifiyng an object, ever. There are tons of implementations of this pattern, notably immutable.js (https://immutable-js.com/), Redux is also an example of this philosophy.

• Alan Perlis and the Evolution of Programming Languages
  1 project | news.ycombinator.com | 7 Sep 2022

  JavaScript is most programers' first introduction to map, filter, and reduce. Easy lambdas made those higher-order functions a staple of a lot of JS code.

  Meanwhile, immutable.js[0] is at 10 million downloads per week and rising.

  I would add that it's not just the ease of use of lambdas, but the fact that in JavaScript functions really are first class citizens. Most of the other widely used languages that people start on have lambda functions added in as a bit of a hack and only treat some functions as real values.

  [0] https://www.npmjs.com/package/immutable

• immutable-js VS riux - a user suggested alternative
  2 projects | 12 Aug 2022