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Immutable Data Structures

3. Use Pure Components:

5. Image Optimization:

Instead of directly modifying the data objects, use immutable data structures like Map from Immutable.js. These Libraries create new versions of the data whenever you want to change it, keeping the original data untouched. This helps React efficiently detect the changes and only update the necessary parts to avoid unnecessary re-renders.

Javascript




const state = Map({ items: [] });
  
// Update state immutably
const updatedState = state.set('items', [...state.get('items'), newItem]); 






                        









													
													
												

												
											

											
											

												
Top 10 tricks to make your React App Faster

												
												

													
													
React is one of the most popular, efficient, and powerful open-source JavaScript libraries for building dynamic and interactive user interfaces. It has the capability to build a large-scale application. But when the app grows it becomes very important to optimize the codebase so that it can work fast and smoothly and can handle many requests at a time without performance delay. 

													
													
												

												
												

													
													


Table of Content


    

  • Use React.memo() and React.useMemo():
    • 

  • Use Lazy Loading:
    • 

  • Use Pure Components:
    • 

  • Immutable Data Structures:
    • 

  • Image Optimization:
    • 

  • Use of Multiple Chunk Files:
    • 

  • CDN:
    • 

  • Server Side Rendering:
    • 

  • Performance Testing Tool:
    • 

  • Use Production Mode Flag in Webpack:
    • 




													
													
												

												
												

													
													

													
													
												

												
											

										


										
										

											
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														Top 10 tricks to make your React App Faster:

													

														1. Use React.memo() and React.useMemo():...
													

												
											

											
											

												
													

														1. Use React.memo() and React.useMemo():

													

														You can use React.memo() and React.useMemo() because they are two higher-order components that can help you memorize your components and prevent unnecessary re-renders. React.memo() is used to memoize the entire component and React.useMemo() memoizes the specific value or function within the component. Let’s discuss in detail:...
													

												
											

											
											

												
													

														2. Use Lazy Loading:

													

														...
													

												
											

											
											

												
													

														3. Use Pure Components:

													

														...
													

												
											

											
											

												
													

														4. Immutable Data Structures:

													

														You can use the Lazy loading technique to significantly improve the performance of your react app by reducing the initial load time. This technique delays the loading of components unit they are actually needed and will optimize the initial page load time....
													

												
											

											
											

												
													

														5. Image Optimization:

													

														...
													

												
											

											
											

												
													

														6. Use of Multiple Chunk Files:

													

														These are special components that implement the `PureComponent` class and override the `shouldComponentUpdate` lifecycle method. This method checks if the props and state have changed before allowing the component to re-render. If the props and state have not changed then the  render part is skipped. This means that they can only re-render when their props and state change....
													

												
											

											
											

												
													

														7. CDN:

													

														...
													

												
											

											
											

												
													

														8. Server Side Rendering:

													

														Instead of directly modifying the data objects, use immutable data structures like Map from Immutable.js. These Libraries create new versions of the data whenever you want to change it, keeping the original data untouched. This helps React efficiently detect the changes and only update the necessary parts to avoid unnecessary re-renders....
													

												
											

											
											

												
													

														9. Performance Testing Tool:

													

														...
													

												
											

											
											

												
													

														10. Use Production Mode Flag in Webpack:

													

														Images can significantly impact website loading times. Optimize them by:...
													

												
											

											
											

												
													

														Conclusion:

													

														If your react app is complex and has too many files then instead of loading all your code in one bundle, you can divide it into smaller chunks based on features, routes, or other logical grouping. These chunks are then loaded dynamically as the user interacts with your react app....
													

												
											

											
										


									

									

										
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												3. Use Pure Components:
											
											
										

										

											
											
												5. Image Optimization: