What is TypeScript?

TypeScript is a free and open-source high-level programming language developed by Microsoft that adds a rich type system to JavaScript.It’s used with front-end frameworks such as Angular, Veu, and React. TypeScript can also be used to build a backend with Node.js. This demonstrates how flexible TypeScript’s type system is.

In this article we will share some thoughts on what benefits the use of TypeScript brings to a project, based on our experience and solid tech expertise in web and mobile app development in different domains. As well as why thousands of programmers and companies choose it as a standard, and what makes it so popular. Additionally, we will explore its controversial aspects and discuss cases where using JavaScript is enough for a project.

Main benefits of TypeScript

Using TypeScript in a project offers several advantages:

1. Code Maintainability

TypeScript enforces a more structured approach to coding. With explicit type annotations, code becomes self-documenting, making it easier for developers to understand and maintain. Also, TypeScript involves developers to interface first pattern thinking, which is a good practice. From our company experience, there are much fewer low-quality code projects written on typescript instead of javascript.

2. Enhanced Developer Productivity

TypeScript better supports by IDEs (Integrated Development Environments) and code editors. There are features like autocompletion, code navigation, and refactoring that have a strong positive influence on the developer experience. The compiler's error-checking capabilities provide instant feedback, allowing developers to catch and fix issues quickly.

3. Improved Collaboration

When the project is developed by several developers, TypeScript helps improve collaboration between them. The added type annotations make code more understandable, even for team members unfamiliar with a specific section of the codebase. Especially it increases quality and decreases time for code review, which is a part of each project development process. Also, it helps with onboarding and does it more smoothly for a new developer on a project.

4. Scalability

TypeScript is particularly beneficial for large-scale projects. As the codebase grows, the ability to define and enforce types becomes increasingly essential. TypeScript's type system helps prevent common errors and enables developers to refactor and restructure code confidently.

5. Reduced Number of Bugs

TypeScript's static type checking helps catch potential errors and bugs during the development phase. It reduces the type-conflict bugs to about zero and significantly decreases some other bugs. This proactive approach to bug detection leads to more stable and reliable applications, resulting in a better user experience and reduced time spent on bug fixing. Pros and cons of TypeScript

6. Ecosystem and Community

TypeScript has a thriving community and a rich ecosystem of libraries and frameworks built specifically for TypeScript. By using TypeScript, developers gain access to a wide range of tools and resources, including type definitions for existing JavaScript libraries. The most popular JavaScript libraries have an additional package with types that provide compatibility with TypeScript. Besides, there are frameworks and libraries that were written only for TypeScript. For example, Angular by Google.

Why choose TypeScript?

Development teams often prefer TypeScript because it provides static typing, which can catch potential errors early in the development process and improve code reliability. However, TypeScript requires additional effort and time to set up.

Therefore, in some cases, customers choose JavaScript to reduce time to market and cost. By starting with JavaScript for the minimum viable product (MVP), the development team can focus on delivering core functionality faster and potentially secure additional funding for further development. Once the MVP is validated and there is a need to scale the project or enhance its reliability, migrating to TypeScript can be a sensible decision.

TypeScript provides better tooling, code navigation, and compile-time checks, making it easier to maintain and scale larger projects. Also, TypeScrip helps prevent certain types of bugs and improves code quality.