How To Increase the Performance of Your JavaScript App in 2024

JavaScript remain relevant and is the most used programming language. You'll learn how to increase the performance of your JavaScript app

By Claudio Pires
Updated on February 6, 2024
How To Increase the Performance of Your JavaScript App in 2024

In a recent survey, developers were asked about the top three trends in web development that they foresee to be important in 2024. The most common response was JavaScript. As it continues to remain relevant and is still the most widely used programming language on the internet. In this article, you’ll learn how to increase the performance of your JavaScript app

With this trend, we can expect more emphasis placed on application performance due to the bigger demand for responsiveness. From users and higher expectations for rich content experiences. Here are some tips for increasing your JavaScript app’s performance in 2024.

Use the Right Javascript Framework

One of the most important factors in increasing the performance of an application is to use a JavaScript framework. That increases speed and reduces page weight. A JavaScript software development company notes that frameworks like React, Angular, and Vue JS are all good choices. So, as they support virtual DOM rendering, which bypasses expensive reflows and repaints. 

Additionally, frameworks provide built-in data-binding features for updating UI components when the data changes. By using the right framework, you can increase the performance of your app and reduce page weight. Check the features of the JavaScript frameworks available. To see which one is the right fit for your project and JavaScript applications. 

Keep All Code in One File To Increase the Performance of Your JavaScript App

Another important factor in the performance of your app is to keep all code in a single file. This way, there are no loading times when transitioning between pages. Users will be able to easily scroll through a single file full of content, rather than clicking back and forth from one page or section to another. 

There are two main ways to increase the performance of your JavaScript app in 2024. By optimizing code and eliminating bottlenecks or by reducing script size using modularity. In summary, keep all JavaScript code in one file with a framework that has features for improving performance. So it’s easier on users’ eyes as they traverse through their web content.

Minify the JavaScript Files

To improve the performance of your JavaScript app, it’s important to minify the files. Minification removes whitespace and comments from your code. So that all of the information is contained within a single line with no identifiers for beginning or end statements. This will remove unintended spaces between words in a sentence and unnecessary characters. Like semicolons at the end of every statement. 

This way, you’re not wasting any time reading through superfluous lines of text. When you can condense them into one succinct sentence. Minified JavaScript files also load faster because there isn’t an extra call each time that needs to be made on the server-side. Saving additional loading time while browsing your site. 

Avoid DOM Manipulation To Increase the Performance of Your JavaScript App

You’ll also want to avoid DOM manipulation. JavaScript is to manipulate the Document Object Model. Which can be a notoriously slow task. Because of all the parsing required for it to work properly with browsers and other web-enabled devices. Maintaining this sort of performance will only lead you down a road that requires more expensive hardware upgrades.

You may also require additional resources on your website hosting server, which will cost you time and money. The solution is to use React. As it operates by updating virtual nodes in memory rather than relying on DOM manipulations. This allows for faster rendering times without having any major drawbacks like browser compatibility issues and sluggishness due to buffering speed limitations. 

Cache Data to Avoid Redundant Requests 

Caching data is a popular way to optimize your website’s performance. In this age where we have more bandwidth than ever before, you should still avoid making redundant requests when possible by storing all necessary information as part of an object, so it doesn’t need to do it again until new content is new – such as through a user update profile page, for example. 

The browser will also save these assets locally if they’re not already present, increasing loading speed even further while also avoiding potential connection errors due to throttling thresholds imposed by ISP companies.

App Performance Matters

When you optimize JavaScript performance, you can ensure that your app is operating at peak performance and giving the user a seamless experience every time. It also provides continuity for your users, so they’re not constantly waiting through loading screens and message notifications when interacting with their apps every day.

Claudio Pires

Claudio Pires is the co-founder of Visualmodo, a renowned company in web development and design. With over 15 years of experience, Claudio has honed his skills in content creation, web development support, and senior web designer. A trilingual expert fluent in English, Portuguese, and Spanish, he brings a global perspective to his work. Beyond his professional endeavors, Claudio is an active YouTuber, sharing his insights and expertise with a broader audience. Based in Brazil, Claudio continues to push the boundaries of web design and digital content, making him a pivotal figure in the industry.