immutable-data.md

Immutable Data

Basic Concepts

• Pros and Cons of Using Immutability With React
  http://reactkungfu.com/2015/08/pros-and-cons-of-using-immutability-with-react-js/
  Excellent description of what immutability is, how to use use these concepts with React, and pros and cons of managing data immutably. While the title refers to React, most of the writing just deals with plain Javascript concepts.

• Javascript and Immutability
  http://t4d.io/javascript-and-immutability/
  A description of how to properly immutably update objects and arrays using functions like assign and slice

• Immutable Javascript using ES6 and Beyond
  http://wecodetheweb.com/2016/02/12/immutable-javascript-using-es6-and-beyond/
  Describes ways to handle data immutably using "just" built-in Javascript functions, particularly ES6 syntax

• Pure javascript immutable arrays
  http://vincent.billey.me/pure-javascript-immutable-array
  A reminder to avoid the built-in Array functions that mutate the array, with snippets demonstrating alernative immutable functionality

• Javascript Array: slice vs splice
  https://ariya.io/2014/02/javascript-array-slice-vs-splice
  A reminder that "slice" and "splice" are different functions with different behavior

• Immutable Data from Scratch
  https://ryanfunduk.com/articles/immutable-data-from-scratch/
  Demonstrates building up an immutable update utility library similar to React's Update Addons

• Immutable Objects with Object.freeze
  http://adripofjavascript.com/blog/drips/immutable-objects-with-object-freeze.html
  A quick look at how to use Object.freeze to enforce immutability.

• Immutability in Javascript
  http://www.sitepoint.com/immutability-javascript/
  Describes a couple basic concepts of immutable data in Javascript, and how the Immutable.js library can be used for those concepts.

• Immutable Data Structures and Javascript
  http://jlongster.com/Using-Immutable-Data-Structures-in-JavaScript
  In-depth article covering the value of immutable data, and two common JS libraries

• Immutability is Not Enough
  https://codewords.recurse.com/issues/six/immutability-is-not-enough
  A look at how using an immutable data approach doesn't magically prevent all bugs.

• Javascript Array Methods: Mutating vs Non-Mutating
  http://lorenstewart.me/2017/01/22/javascript-array-methods-mutating-vs-non-mutating/
  An overview of how to accomplish add/remove/replace operations on JS arrays, comparing mutable vs immutable approaches to each.

• Redux Docs: Immutable Update Patterns
  http://redux.js.org/docs/recipes/reducers/ImmutableUpdatePatterns.html
  Some useful examples for correctly updating data immutably, including nested objects, inserting and removing items in arrays, and updating items in arrays, as well as some common mistakes that occur. Important to know when using Redux, but the info is not Redux-specific.

• Immutably setting a value in a JS array (or how an array is also an object)
  https://medium.com/@giltayar/immutably-setting-a-value-in-a-js-array-or-how-an-array-is-also-an-object-55337f4d6702
  An example of how Object.assign can be used to immutably update an array

Immutability and React

• Immutability in React
  http://www.sitepoint.com/immutability-react/
  Covers the reasons and basic concepts of using immutable data with React

• Why Should I Care About Immutable Data In React?
  http://www.bennadel.com/blog/2903-why-should-i-care-about-immutable-data-in-reactjs.htm
  Describes the major benefits of using immutable data in React, with a demo

• React: A (very brief) talk about immutability
  https://medium.com/pro-react/a-brief-talk-about-immutability-and-react-s-helpers-70919ab8ae7c
  Talks about the issues with mutation, and some ways to update immutably

• Comparing and Modifying Objects in React
  https://blog.komand.com/object-comparison-in-react-js-components
  Some examples of comparing objects inside of React's lifecycle methods, and how to update them properly.

Immutable Data Libraries

• List of immutable libraries
  https://gist.github.com/jlongster/bce43d9be633da55053f
  A follow-up to James Longster's article, with pointers to numerous immutable data libraries

• Redux Ecosystem Links: Immutable Data
  https://github.com/markerikson/redux-ecosystem-links/blob/master/immutable-data.md
  A large list of libraries for managing immutable data in Javascript. Some of them are Redux-specific, but also includes many general-purpose immutable data libraries as well.

• Painless Immutability
  https://guigrpa.github.io/2016/06/16/painless-immutability/
  A somewhat opinionated article from the author of a new immutable data library comparing different options, but still well-written and informative about the pros and cons of each.

• Immutable.js
  http://seanamarasinghe.com/developer/immutable-js/
  An introduction to the API and use cases for Immutable.js

• How to use Immutable.js Records with React and Redux
  https://medium.com/azendoo-team/immutable-record-react-redux-99f389ed676
  Examples for using Immutable.js records for clarity and consistency of data management

• Immutable.js: An Introduction with examples written for humans
  http://untangled.io/immutable-js-an-introduction-with-examples-written-for-humans/
  A detailed series of tutorials explaining how to use Immutable.js's API

• Seamless-Immutable: An Alternative to Immutable.js
  https://medium.com/@ckoster22/seamless-immutable-an-alternative-to-immutablejs-12795d6bf577
  Examples of how to use the Seamless-Immutable library, and how it compares to Immutable.js