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TypeScript vs JavaScript: Choosing the Right Language Type

Both TypeScript and JavaScript are powerful programming languages that can be used to develop web applications.

TypeScript is a superset of JavaScript, which means that it has all the features of JavaScript and some additional features. While TypeScript syntax is more complex than JavaScript syntax, TypeScript provides better performance and scalability. In addition, TypeScript offers better error handling capabilities.

If you are looking for a powerful programming language that can help you develop scalable and robust web applications, then you should consider using TypeScript.

What is TypeScript?

TypeScript is an open-source programming language developed and maintained by Microsoft. It supports typed, object-oriented programming and compiles to JavaScript – making it ideal for large projects as it’s easier to debug and maintain. Its syntax adds features such as classes, optional static typing and modules that ultimately enhance the user experience when coding.

In a nutshell, TypeScript provides developers with a smoother workflow while leveraging features from popular languages like C# and Java. As an extra bonus, other developers can read TypeScript code more easily than many of the traditional JavaScript formats currently used out there in the wild.

What is JavaScript?

JavaScript is a scripting language primarily used for programming web pages in order to create dynamic, interactive experiences. It has become an essential tool for web designers as many modern websites rely on JavaScript to be user-friendly. JavaScript allows developers to design elements of a website that can respond to a reader’s behavior. Thus, providing readers with an enjoyable and informative experience when they are navigating the Internet.

Despite its name, JavaScript has no connection to Java and is instead based on the syntax and principles of the C language. Ultimately, JavaScript enables website developers and graphic designers to bring stunning visuals to life and create interactive environments quickly and effectively.


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Comparison Table of TypeScript vs JavaScript

Type SystemStaticDynamic
TypesPrimitive, Interface, Union, Tuple, etc.Dynamic
SyntaxSimilar to JavaScript, but with type annotationsJavaScript syntax
CompilationCompiles to JavaScriptInterpreted
InteroperabilityCan use existing JavaScript code with TypeScript definitionsNo type definitions
Tooling SupportGood IDE support, type checkingLimited type checking, basic IDE support
Error PreventionType checking helps prevent many common errors at development timeErrors can occur at runtime
PopularityGrowing, especially in large projectsDominant in web development

Comparison of TypeScript and JavaScript

TypeScript and JavaScript have several key differences, which can make one a better choice than the other depending on the specific use case.


TypeScript offers the ability to add static types to the language, which makes it easier for developers to thoroughly review and test code before deployment. It also allows for quick refactoring of large codebases by providing better autocompletion and tooling support. On the other hand, JavaScript has a very simple syntax that is often easier for new coders to learn and understand.

Ultimately, both TypeScript and JavaScript provide different approaches to solving coding problems, so a developer must consider what works best for their project in order to choose the right programming language.


When it comes to performance, JavaScript and TypeScript are very close. To run JavaScript, developers don’t have to compile the code, meaning it runs relatively quickly. TypeScript can also be fast because it has a shorter development cycle; when code is written in TypeScript and then transpiled into JavaScript, more efficient runtime performance can be achieved. That said, the compiled TypeScript code may actually take longer to execute on machines than the original JavaScript source due to the transpiling process.

Ultimately, both languages provide a level of speed when running applications, but how quickly your application will work as intended depends on how well you optimize your code in either language.


When it comes to scalability, many developers often wonder which is better, TypeScript or JavaScript. In reality, they are quite similar in this regard; both offer the same level of scalability regardless of the size or scope of your project. While JavaScript is a more lightweight language, TypeScript’s type definitions provide a higher level of control over code for larger projects.

Of course, as with anything else in software development, choosing which one is right for you will ultimately depend on the exact needs of your project and the preferences of your development team. Either way, both JavaScript and TypeScript have proven themselves to be incredibly scalable languages for modern web applications.

Error handling

When it comes to error management, both TypeScript and JavaScript offer a variety of unique solutions. When dealing with TypeScript errors, developers have access to static typing and type-checking that can help catch errors in the development process. JavaScript, on the other hand, does not have these features and therefore relies more on exception handling for runtime issues. However, its dynamic typing makes it easier to troubleshoot as code is being written, which leads to fewer bugs once released.

Ultimately, each language has its own meaningful way of addressing errors when writing web applications–it’s simply up to developers which solution best fits their needs.

Why use TypeScript

TypeScript offers developers a great advantage when developing applications with a point-based approach. It is a powerful language with static typing and strongly typed objects, allowing developers to create robust and reliable applications without the use of JavaScript.

TypeScript’s type system enables developers to detect incorrect data type assignments before code execution.

Furthermore, by relying on types, coding errors can be prevented early in the development process. This feature also ensures better readability of the code and allows for scalability without risking correctness or performance.

Aside from that, TypeScript offers an extensive library of predefined functions and objects which help development teams to save time while coding.

Why use JavaScript

JavaScript is an incredibly versatile programming language that can be used to create interactive, engaging experiences for users. It is quickly becoming the go-to choice for web designers and developers due to its versatility and functionality.

With JavaScript, you can access native features on computers and devices such as location services, camera access, local storage, notifications and more.

Additionally, JavaScript allows for the development of web applications that have a wide range of features— from customizing data presentation to complex animations.

Due to its ubiquity, it’s easy to find resources for learning and developing with JavaScript, making it an accessible language for anyone who wants to take their online projects to the next level.

Similarities between TypeScript and JavaScript

TypeScript and JavaScript are two popular programming languages that many developers all over the world utilize. Both these languages, despite their differences, share certain similar aspects.

They both can be used to build applications for the web, as well as being open-source tools for creation.

Furthermore, TypeScript extends and builds on the features already present in JavaScript; including functions, variables and classes.

Both languages share the same syntax and grammar rules and have a wide range of third party libraries which extend their capabilities.

As a result of their key similarities and shared foundations, TypeScript‘s popularity continues to grow and it looks like it will continue to play an important role in software development in the years ahead.


When it comes to front-end web development, the choice of programming language is essential for success. TypeScript and JavaScript are two popular options that both offer unique advantages and drawbacks depending on your project’s requirements; by carefully considering all factors, you’ll be able to make an informed decision that meets the needs of whatever challenge lies ahead.

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