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Rachael Grey
Rachael Grey

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Proven Ways to Improve & Boost React Performance

Time is a valued asset that no user would like to waste if your web app demands extreme patience for their attention. React is a popular framework that developers believe for rendering performance.

However, React even renders many irrelevant components addressing such performance issues; developers can smartly and consciously ensure React performance optimization by considering some prime measures and implying them.

Methods to Boost & Improve React Performance

To get around the expensive DOM operations, there are excellent React performance strategies that we advise:

1. In React Apps, Windowing or List Virtualization

The performance of many React apps that use or display lengthy lists is frequently problematic. You will render the complete list in the DOM before loading the app, significantly slowing down the React.js app's performance and generating UI latency.

List Virtualization or Windowing is one method for getting around this problem. Here, we only permit a limited list of items to be rendered on the DOM as much is visible instead of causing the entire long list of components on the app screen.

React-window and react-virtualized are the two windowing libraries available; you will enable rendering a small portion of the lengthy list on the app screen, which will change react app performance.

2. For List Rendering, essential coordination

When working with lists in React, you can give an element essential properties that will aid in rendering the following features. If the developer incorrectly assigns component keys to list elements for dynamic lists, it becomes useful for the user and slows down the speed of the React app. It is unnecessary here because the new list entry will recommend the prior one immediately. To address this bottleneck, you must give each list component a distinct key value.

3. Know how to handle "this."

While 'this' binding is not necessary for functional components, you may want to use them whenever possible. React will not automatically bind your functions within segments if you are using ES6 binding, though. You can still manually achieve the binding, though. You can secure your components and tasks in the following ways:

  1. Render bound in Bind in the function Object() { [native code] }.
  2. Allow the arrow function in the render
  3. Bind the class property's arrow method. [Not in the authorized ECMAscript]

4. Lazy Loading Images in React

There is a reasonable probability that your React app's performance will suffer if it has a lot of photos. This occurs because the Api renders each image individually before presenting the user interface. Therefore, we advise employing lazy loading images, which only cause that specific image after waiting until its turn has appeared on the user's screen. Like windowing prevents extra DOM nodes from being created, lazy loading of images does the same.

5. Delete Javascript Bundles

Learn to trim your Javascript packages if you want to eliminate duplicate code. The possibility of your React app performing well increases when you remove duplicates and unnecessary regulations. The bundled code must be evaluated and determined.

6. React redux optimization tips

When React apps are created with Redux, a classic example to consider is a well-known problem addressed by Yahoo. Yes, the combo is lethal and helps complex structure circumstances. However, using Redux causes your React app to render again, slowing down your performance.

We'll outline two strategies for using React Redux apps to get around this problem. The first is using the RESELECT library when your React app's higher-order components are allotted for rendering tasks. Yahoo gained a great deal from using this library.

7. Server Side Rendering

Consider using SSR deliberately and determining whether your app genuinely requires SEO. If you can avoid utilizing SSR when it's not necessary, you'll be in luck. SSR consumes a tremendous amount of load.


I hope you follow and put into practice the React app speed optimization advice we have offered in this blog now that you have a clear understanding of React performance challenges. Improve the performance of your current React app by working with the top React development company, which can offer expert advice and best practices.

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1 Think in {Set}

Type is an everyday concept to programmers, but it’s surprisingly difficult to define it succinctly. I find it helpful to use Set as a conceptual model instead.

#2 Understand declared type and narrowed type

One extremely powerful typescript feature is automatic type narrowing based on control flow. This means a variable has two types associated with it at any specific point of code location: a declaration type and a narrowed type.

#3 Use discriminated union instead of optional fields


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