Top 7 JavaScript Trends To Watch And Use In 2021

  • By Olivia Cuthbert
  • 21-04-2021
  • Trends
javascript trends

JavaScript remained one of the most well-known and most studied programming languages in 2020. According to a Stack Overflow survey, JavaScript tops the list of most popular technologies. Almost 70% of professional programmers use this programming language worldwide. It owes its reputation to its integrity and the wide range of applications created with JavaScript, from web development to non-browser environments.

JavaScript expects to remain at the top of popularity in the coming year, and programming services in this language will be in high demand. This article will look at the top 7 JavaScript trends to watch and implement in 2021 and why you should implement them in your projects.

1. TypeScript will continue to be popular

Although TypeScript emerged in the distant year 2012, it was a programming language hyped in 2019-2020. TypeScript works as a JavaScript extension that allows you to build complex applications to run both clients- and server-side. Many programmers like TypeScript because it strongly typed, easy to read, and simple to debug. It is harmonious with a full range of IDEs and can converts to JavaScript at one point.

TypeScript is one of the top three most popular programming languages. And according to GitHub statistics, it will continue to grow in popularity as its community grows.

2. React.js will continue to be popular

JavaScript offers a wide range of frameworks for fast and efficient application development. As a result, developers are not always sure which one is best suited for a particular project. Many opt for React.js because it allows them to create robust and easily scalable web and mobile solutions.

As ranked by Stack Overflow, React.js ranks first among all frameworks used for web development. According to map trends, React.js is gaining popularity among app developers, reaching 9 million downloads by November 2020.

Many famous mobile apps company built mobile app using React.js like Facebook, Instagram, Netflix, WhatsApp, Discovery, NY Times, and many others. React.js continues to evolve, adding new features to the mix and attracting a wider audience. As a result, by 2021, we expect even more applications to have React.js at their core.

3. Vue.js will continue its growth

Vue.js is a recently released JavaScript framework. It was first released in 2014 and has since spread very quickly among web application developers. In 2019, Stack Overflow ranked it as the second most searched web development framework, and trends claim there were almost 2 million downloads of Vue.js.

Alibaba and Xiaomi have earned Vue.js high respect among developers. It is user-friendly, highly customizable, and easy to integrate with other frameworks. With Vue.js, developers can create user interfaces and single-page applications. It is much easier to use than Angular, so developers often prefer to use Vue to build their web solutions.

According to web technology research, the use of Vue.js is increasing. Nowadays, it is easy to find a Vue.js development company ready to provide you with efficient and stable applications developed using this framework. Therefore, we believe that Vue.js should remain with us in 2021.

4. AngularJS will continue to evolve

AngularJS is one of the usual extensive JavaScript frameworks that remains popular among software developers. Although it can be slow to implement and may seem a bit cumbersome, it offers well-thought-out features with MVC architecture to build robust single-page applications.

In 2019, this framework got its eighth version with an excellent assortment of new comments.
It includes differential charging and lazy loading that make web applications faster, the ability to create web workers with the CLI that improves web development, a new deprecation guide so developers can easily keep track of features and APIs, and much more.

Stack Overflow ranks this framework 3rd among web development frameworks. And we Built with states that there are about 3.7 million websites created in Angular globally.

5. PWAs are increasing demand

PWAs are gaining a reputation, and more and more companies are willing to develop them. According to Statista, 24% of e-commerce companies plan to invest in PWAs, while 11% are already using this solution.

Progressive web applications (PWA) are accessible on wireless gadgets such as mobile phones and tablets. They function like standard websites, although they behave like mobile applications. Software developers use web-building technologies such as HTML, CSS, and JavaScript to develop PWAs.

PWAs have many advantages. They are cross-platform, adapt quickly to various gadget screen sizes, update automatically, work offline, establish secure connections for data exchange, and many other features.

Some companies have already tried PWAs and were satisfied with the results. Uber, Twitter, Pinterest are among them. They have been able to attract more customers, increase revenue from monthly visits, and more.

6. SPAs are on the rise

Single-page applications (SPAs) are a new way of navigating web pages on wireless gadgets. SPAs allow web pages to uses without reloading, so users get a more robust action.

To create SPAs, web developers use standard web technologies such as JavaScript, HTML, CSS, AngularJS, React.js. or Vue.js.The most famous examples of SPAs are LinkedIn, Airbnb, Facebook, Gmail, and others.

Other benefits of SPAs that make them a trend in 2021 include:

extended battery life;
Improved user experience;
faster page navigation;
better caching;
easy to develop and maintain.

7. AMP

According to Web Technology Surveys, AMP servants are more popular. The trend continues to increase, and we expect AMP to further expand its influence by 2021.

Google developed the Accelerated Mobile Pages technology to make web pages download faster. To do this, Google provides software developers with JavaScript code and HTML and CSS structures that are ready to be modified. Google restricts customized JavaScript in its AMP pages as it is often a factor in slowing downloading speed.

Several websites are already using AMP, including Twitter, The Guardian, CNBC, Gizmodo, etc.

In addition to fast loading pages, AMP has a few other advantages:

Improved SEO, as Google prioritizes AMP pages; users spend more time on the site because they do not wait long for a page to load; better monetization due to better usability of images and banners in the HTML code; easier to spot as Google shows pages in Google Search Top Stories сarousel; as a result, AMP content is shown first in Google search.


JavaScript is a strong and widely applicable programming language. Besides, a well-developed JavaScript ecosystem offers a wide range of technical solutions, especially in web development.

As the web proceeds to evolve, top Java development companies in India technologies expect to keep this programming language at the top of the software developer rankings in 2021.


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Olivia Cuthbert

I'm Olivia Cuthbert and I am a Sr. technical consultant and writer working for PixelCrayons. I am passionate about exploring and writing about innovation & technology and have been in this field for 4+ years.

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