Why do we love TypeScript? And why should you love it too?

Why do we love TypeScript? And why should you love it too?

At Scriptide, we specialize in crafting web-based software, and while JavaScript is a handy language for this purpose, we've found it lacks some crucial features when it comes to writing maintainable code for more complex projects.

Written by

Dénes Gutai


JAN 31, 2024




5 min read

Scriptide and TypeScript logos on a computer monitor.

A prominent Japanese company contacted us to enhance their existing fitness application that was based on JavaScript (read more about the business advantages of JavaScript / Typescript). As avid TypeScript users, we decided to use that as our main tool. It is a superset of JavaScript that introduces essential features that make the development journey more enjoyable and software more reliable. Utilizing it for the application significantly improved the code quality, resulting in a substantial decrease in the time required to extend the software. This not only enhanced efficiency but also translated into cost savings for our partner.

So, what does it mean for TypeScript to be a superset of JavaScript? It means TypeScript can handle and run any JavaScript code. But what sets it apart?

Well, let's dive into some goodies that we're genuinely thankful for, while sharing you how we utillized them in our project:

1. Static Typing: Elevating Efficiency in Project Timelines

TypeScript introduces static typing, allowing developers to define and enforce types for variables. This helps catch potential errors during development rather than at runtime, leading to more robust and maintainable code - because nobody hates it more when a code breaks after "developed perfectly". This feature provides a safety net by identifying type-related issues early in the development process saving us a lot of headaches.

During our work, we always prioritize the interests of our clients, which is why we always strive to provide them with the most efficient and best possible service. That is why in this case, we decided to rewrite the backend from scratch, as it was initially written in plain JavaScript. This decision proved to be beneficial, as we were able to work at least twice as fast when extending the backend later on. This efficiency gain played a crucial role in completing the project ahead of schedule, greatly benefiting our partner.

2. Type Annotations: Elevating Code Maintainability for Efficient Onboarding:

TypeScript enhances code maintainability by making it more self-documenting. The inclusion of type annotations serves as built-in documentation, simplifying the understanding of expected data structures and function signatures for developers. It proves particularly useful when hovering over a variable or function, providing instant insights into the types of arguments, among other details. This feature, in turn, facilitates collaboration among team members and simplifies the onboarding of new developers.

This feature proved invaluable as collaboration continued with the client. When new developers from our company joined the project, they could start contributing useful code to the codebase more quickly, thanks to the enhanced understanding of the software's building blocks.

3. Intellisense: Guide to Efficient Code Navigation

The static typing in TypeScript enables powerful code analysis tools and intelligent code completion (Intellisense). IDEs and text editors that support TypeScript provide developers with accurate and context-aware suggestions, making code navigation and exploration more efficient. This also helped us to easily and quickly jump between steps of some complex flows of the application such as a registration or analysis creation.

4. Object-Oriented Features: to Keep the Code Structured

TypeScript supports object-oriented programming concepts such as classes, interfaces, inheritance, and encapsulation. These features make it easier to structure and organize code in a more modular and reusable manner. These features are mandatory while developing complex backend architectures but we've also heavily relied on them during frontend development.

5. Advanced Language Features: to Level Up the Quality of the Codebase

Last but not least TypeScript introduces advanced language features like union types, intersection types, generics, and mapped types. The REAL power of TypeScript lives in these features. They provide developers with powerful tools to create flexible and reusable code patterns. Union types, for example, allow variables to have multiple possible types, while generics enable the creation of flexible and type-safe functions and data structures.

We embraced these features from day one of the project, and their implementation not only enhanced the overall clarity of the code but also led to a reduction in the size of the codebase. This reduction was made possible through the reuse of patterns and the structured encapsulation of typings. This approach offers multiple advantages. Firstly, it significantly improves code understandability. Secondly, when modifications are necessary later on, they can be made in a codebase that is much easier to comprehend. Consequently, this approach has the potential to contribute to long-term efficiency gains in the development process.

In summary, the adoption of TypeScript in our project has proven instrumental in enhancing development efficiency and code quality. Thanks to TypeScript features, we were able to provide a maintainable, well-structured, and complex codebase. This, in turn, positions the company for streamlined future development, ensuring scalability and ease of maintenance in the long term.

These attributes exemplify why TypeScript stands out as an excellent tool, making the development process more seamless and the resulting code more dependable. When software operates with fewer bugs and errors, and developers find satisfaction in the engineering aspect of the code, it's a win-win situation for everyone!

This is precisely why we hold a strong affinity for TypeScript and predominantly incorporate it into all our projects.

If you're interested in having software developed with a focus on the advantages of this technology mentioned earlier, don't hesitate to reach out to us!

Scriptide is a highly skilled software development company that specializes in custom, complex B2B software solutions. We offer a wide range of services, including digital transformation, web and mobile development, AI, blockchain, and more.

Get a free IT consultation. We are excited to hear from you.

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