Rangle.io: React Training
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  • Introduction
  • Setup
  • Functional JavaScript
  • ES6 constructs
    • Default Params
    • Template Literals
    • Destructuring
    • Arrow Functions
    • Promises
    • let and const
    • Modules
  • Thinking in Components
    • Atomic Design
    • Atomic Component Principles
    • Benefits of This Approach
    • The Process
    • Task #1
  • React Components
    • Stateless Components
    • Stateful Components
    • Stateful vs Stateless Components
    • Composition
    • Task #2
    • Task #3
    • Task #4
    • Task #5
  • Immutable
    • What Is Immutability?
    • The Case for Immutability
    • JavaScript Solutions
      • Object.assign
      • Object.freeze
    • Immutable.js Basics
      • Immutable.Map
        • Map.merge
      • Nested Objects
        • Deleting Keys
        • Maps are Iterable
      • Immutable.List
      • Performance
      • Persistent and Transient Data Structures
      • Official Documentation
    • Exercises
      • Task #1
      • Task #2
      • Task #3
      • Task #4
      • Task #5
      • Task #6
      • Task #7
  • Redux
    • Review of Reducers and Pure Functions
    • Redux Reducers
    • Redux Actions
    • Configuring your Application to use Redux
    • Using Redux with Components
    • Redux and Component Architecture
  • Routing
    • React Router
    • Router Redux
  • Forms
    • Redux Form
  • Testing
    • Setup
    • Components
    • Reducers
    • Actions
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  1. Immutable
  2. Immutable.js Basics

Performance

PreviousImmutable.ListNextPersistent and Transient Data Structures

Last updated 6 years ago

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Due to having to allocate memory and having to copy the data structure whenever any change is made, this can potentially lead to a large number of extra operations having to be performed depending on what type of changes are made and how many of them. To demonstrate the difference, here is a . Doing memory allocation and copy on large strings can be expensive even on a shallow object.

test run