Comparison of React, Angular, and View

Understanding the differences and optimization techniques

Introduction

  • Three major frontend frameworks: React, Angular, and View
  • Each framework has its own unique features
  • Mechanism of reconciliation differs in each framework
  • React uses a virtual DOM, View also uses virtual DOM with some differences, Angular uses an incremental DOM

React Reconciliation

  • React is a library that renders the document by reconciling the virtual DOM
  • Changes are tracked by creating a working progress tree
  • Fiber is used to divide the work into units, allowing prioritization of lightweight tasks for faster rendering
  • Fiber optimizes the rendering process to achieve 60fps performance

View Change Detection

  • View uses a proxy-based change detection mechanism
  • Data in View is wrapped in a native proxy trap
  • Changes in data trigger the rendering of components or directives
  • Change detection can be optimized by using strategies and disabling certain zones

Angular Incremental DOM

  • Angular compiles code into a set of instructions
  • Unused parts of the code are eliminated through tree shaking
  • Change detection in Angular handles asynchronous operations and intervals
  • Optimization can be achieved by disabling change detection in certain components

Pros and Cons

  • React: Flexible, provides optimization tools, but requires understanding of Fiber
  • View: Simple to use, lazy loading for optimization, but limited optimization techniques
  • Angular: Efficient tree shaking, handles asynchronous operations, but heavy change detection
  • Choose the framework based on project requirements and familiarity

Conclusion

  • Understanding the mechanisms of React, Angular, and View is crucial for optimization
  • Upgrade to React 16+ for Fiber and optimization benefits
  • Consider project requirements and familiarity when choosing a framework