{"id":25404,"date":"2022-04-12T19:15:11","date_gmt":"2022-04-12T13:45:11","guid":{"rendered":"https:\/\/mobisoftinfotech.com\/resources\/?p=25404"},"modified":"2025-12-30T17:44:24","modified_gmt":"2025-12-30T12:14:24","slug":"typescript-vs-javascript","status":"publish","type":"post","link":"https:\/\/mobisoftinfotech.com\/resources\/blog\/typescript-vs-javascript","title":{"rendered":"TypeScript vs JavaScript: Key Differences Business Decision Makers Should Know"},"content":{"rendered":"

Gone are the days when JavaScript was the only programming language behind the successful implementation of web projects. Today, many alternatives are available in the market and transforming the software development landscape for the better. One of the alternatives to JavaScript is TypeScript. It is an enhanced version of JavaScript and is most suitable for large-scale applications. <\/p>\n\n\n\n

Our today’s post on ‘TypeScript vs JavaScript’ will give you a detailed insight into the basics of both technologies, key differentiating factors between the two, benefits, and much more that will help you choose the best technology suitable for your business requirements. So, let\u2019s dive right in.<\/p>\n\n\n\n

All about JavaScript<\/h2>\n\n\n\n

JavaScript or JS is a client-side scripting language that follows the ECMAScript specification. It is one of the core technologies of the World Wide Web developed by Netscape to create interactive web pages, web\/mobile applications, and other digital products and services. Along with client-side scripting, you can use JavaScript for your server-side requirements by hiring the right Node JS developers<\/a> or a development team. It is a high-end, multi-pattern, and Just-in-Time (JIT) compiled technology that embeds scripts within HTML pages and interprets them during runtime. <\/p>\n\n\n\n

JavaScript is known for its first-class functions, curly-bracket syntax, prototype-based object orientation, and dynamic typing. What makes it a multi-paradigm technology is its dedicated support and assistance for imperative programming along with functional and event-driven styles. It is backed by an API to successfully handle tasks related to Document Object Model (DOM), text, standard data structures, dates, and regular expressions.<\/p>\n\n\n\n

When it comes to web page loading, code (scripts) written in JavaScript are automatically executed. Initially, JS engines were employed in web browsers only. But you can now embed them in specific servers with the help of Node JS. Additionally, the derivatives of JavaScript, including Kotlin, CoffeeScript, Dart, and TypeScript, can be embedded in several applications built with cross-platform development frameworks like Electron and Apache Cordova.<\/p>\n\n\n\n

JavaScript is one of the most commonly used programming languages across the globe. Approx 65% of professional developers<\/a> have used it to create high-quality products and services in 2021, says Statista. Some of the popular companies using this language include Airbnb, Walmart, Instagram, Google, Netflix, Reddit, PayPal, Meta (formerly Facebook), Uber, and StackShare. These facts are enough to conclude that JavaScript is here to stay. <\/p>\n\n\n\n

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Why Use JavaScript?<\/h2>\n\n\n\n

The demand for JavaScript is continuously growing as web browsers and apps are becoming more mainstream. <\/p>\n\n\n\n

Here are some key reasons to choose JavaScript for your app development.  <\/p>\n\n\n\n

1<\/span> Interactive Programming<\/b><\/h5>\n\n\n\n

JavaScript facilitates a comprehensive graphical user interface that makes programming much easier and more interactive. The language can be used to add, delete, or modify HTML, thereby displaying or hiding content quickly and effectively.<\/p>\n\n\n\n

2<\/span> Superior Debugging<\/b><\/h5>\n\n\n\n

Browsers have state-of-the-art debugging capabilities for JavaScript, which makes development a breeze.<\/p>\n\n\n\n

3<\/span> Extensive Learning Support<\/b><\/h5>\n\n\n\n

JavaScript is backed by a solid development community and an easily accessible library code repository to support newbies and professional developers.<\/p>\n\n\n\n

4<\/span> Complete Functional Assistance<\/b><\/h5>\n\n\n\n

You can use JavaScript to include items like drag-and-drop elements and sliders to provide your visitors with a rich user interface. You can easily manage the way your app reacts to multiple user interactivity such as pointer movements, data entry, mouse clicks, and more.   <\/p>\n\n\n\n

5<\/span> Facilitate Client-Server Interactions<\/b><\/h5>\n\n\n\n

One of the most important advantages of JavaScript is that it enables client-server interactions. You can send requests from the client (web browser) to your target server and evaluate the needed user inputs before transmitting data to the server.<\/p>\n\n\n\n

6<\/span> Cookies and Local Storage Support<\/b><\/h5>\n\n\n\n

The right use and implementation of JavaScript enables your developers to work with local storage and cookies seamlessly. It helps to optimize user data and enhance the overall web browsing experience.<\/p>\n\n\n\n

All about TypeScript<\/h2>\n\n\n\n

TypeScript or TS is a superset of JavaScript that contains optional typing. It is an object-oriented, open-source programming language designed and maintained by Microsoft to overcome the drawbacks of JavaScript. It is required to convert TypeScript code into its equivalent JavaScript code by using the TS compiler before running it. This extends your existing JavaScript capabilities and helps you develop superior web and mobile applications that facilitate successful client-side and server-side execution.  <\/p>\n\n\n\n

In a nutshell, TypeScript is a statistically typed programming language that helps you write clear and easily maintainable JavaScript code. You can use it on Node JS, Deno, or any other browser supporting ECMAScript 3 or its latest versions. <\/p>\n\n\n\n

TypeScript gives access to third-party header files for various libraries such as MongoDB, jQuery, D3.js, etc. You get the privilege to use TS headers for Node JS elementary modules that enable smooth Node JS development. It provides an array of features and functionalities, including unions, visibility scopes, interfaces, classes, inheritance, namespace, variables, expressions, statements, modules, comments, and more.  <\/p>\n\n\n\n

According to the Stack Overflow Developer Survey 2021<\/a>, TypeScript stands amongst the top three most wanted programming languages. The same report states that 15.29% of developers worldwide are willing to choose this technology for their future development requirements. Besides, many companies like Lyft, KAVAK, Asana, Microsoft, Bitpanda, Accenture, Slack, etc., are already using it. With this, we can surely say that TypeScript is about to create numerous business opportunities in the coming times. <\/p>\n\n\n\n

Why Use TypeScript?<\/h2>\n\n\n\n

Now that you know the basics, let\u2019s move forward with our TypeScript vs JavaScript discussion by understanding how TypeScript can help you accelerate your mobile application development process. <\/p>\n\n\n\n

Here are some benefits of this programming language to give you a better idea. <\/p>\n\n\n\n

1<\/span> Static and Dynamic Typing<\/b><\/h5>\n\n\n\n

With TypeScript, developers can easily identify the variables at runtime and store data accordingly. They can initiate static as well as dynamic typing by adding type support for JavaScript in a hassle-free way.<\/p>\n\n\n\n

2<\/span> Exploiting New ECMAScript Features<\/b><\/h5>\n\n\n\n

TypeScript supports unique, modern ECMAScript standards and trans-pile them to your choicest ECMAScript objectives. With this, you can use different attributes of ES2015 and beyond, such as classes, functions, de-structuring, modules, spread operator, and lambda, among others.<\/p>\n\n\n\n

3<\/span> Improved IDE Support<\/b><\/h5>\n\n\n\n

TypeScript helps you create an advanced development environment for your Android, iOS, or Web app. There are various IDEs including WebStorm, Sublime, Atom, and Visual Studio Code that provide dedicated support for this language.  <\/p>\n\n\n\n

4<\/span> Type Inference<\/b><\/h5>\n\n\n\n

TypeScript can be your go-to option to simplify typing. By practicing type inference, you can make typing much easier and effortless. It helps in avoiding mistakes that may later result in runtime errors.<\/p>\n\n\n\n

5<\/span> Interoperability<\/b><\/h5>\n\n\n\n

One of the most important benefits of TypeScript is interoperability. Its association with JavaScript offers developers good interoperability capabilities. However, a good amount of time and effort is required to work with JavaScript libraries in TypeScript.<\/p>\n\n\n\n

6<\/span> Firm Null Analysis<\/b><\/h5>\n\n\n\n

TypeScript doesn’t permit the utilization of a variable that is unknown to the TS compiler. This helps your developers to eliminate common programming errors such as cannot read property \u2018x\u2019 of undefined.<\/p>\n\n\n\n