Typescript and Node.js have grown in popularity among programmers over the years. TypeScript is a typed superset of JavaScript. TypeScript will aid in the development process, ensuring that you are free of bugs and small errors, whereas Node.Js is an open-source server-side execution platform for JavaScript code. This tutorial will help you understand how to use TypeScript with Node.js.
What Is TypeScript?
- TypeScript is a superset of JavaScript and is an object-oriented and tightly typed programming language. TypeScript code is transformed to JavaScript, which may be used in any environment that supports JavaScript, including browsers, Node.js, and your own applications.
- At Microsoft, Anders Hejlsberg created typeScript. TypeScript was created in response to the limitations of JavaScript for constructing large-scale applications within Microsoft and among its external customers. There was a demand for specialized tooling to make developing JavaScript components easier because of the complexity of working with complex JavaScript code.
- TypeScript is a variant of JavaScript with a few more features. TypeScript extends JavaScript with extra syntax to provide a more robust interface with your editor. TypeScript is a scripting language that understands JavaScript and relies on type inference to deliver advanced functionality without the need for additional code.
What Is Node.js?
- Node. js (Node) is an open-source server-side execution platform for JavaScript code.
- Node is often used in real-time applications like news feeds, chats, and web push notifications because it allows for a persistent connection from the browser to the server.
- Node.js is a JavaScript runtime based on the V8 JavaScript engine from Chrome. Node.js is an asynchronous event-driven JavaScript runtime for building scalable network applications.
- Although Node.js is excellent for developing server-side apps, it lacks several current features such as type checking. It can also be difficult to manage a Node.js codebase.
- Typescript supports these current coding methods, such as static typing and type checking. It's designed to create complex and high-level applications. That's why having Typescript as the primary language for supporting Node.js capabilities would be ideal.
- This lets you develop server-side apps with rigorous type checking, avoiding runtime type errors and other Typescript benefits while maximizing Node.js' capabilities.
Features of Node.js
- The Node.js library is extremely fast in code execution because it is built on Google Chrome's V8 JavaScript Engine.
- Node.js is an asynchronous, event-driven programming language. The Node.js library's APIs are all asynchronous or non-blocking. It means that a Node.js-based server never waits for data from an API.
- Node.js features an event looping approach with a single-threaded model. The event mechanism allows the server to reply in a non-blocking manner that increases its scalability.
- Because NodeJS is cross-platform, it may be used on many systems, including Windows, Unix, Linux, macOS X, and mobile devices.
- Node.js is a rapid data processing framework that concurrently processes and uploads a file, which saves time. As a result, NodeJs boosts data and video streaming speeds overall. Data is never buffered in a Node.js application.
Examples of TypeScript With Node.js
In the Node.js environment, TypeScript is well-known, with numerous organizations, open-source projects, tools, and frameworks using it. The following are some significant open-source node.js projects that use TypeScript:
- NestJS - It is a comprehensive and feature-rich framework that makes building scalable, well-architected systems simple and enjoyable.
- TypeORM - Great ORM influenced by well-known utilities from other languages, such as Hibernate, Doctrine, and Entity Framework.
- Prisma - A declarative data model, automated migrations, and fully type-safe database queries feature this next-generation ORM.
- RxJS - It’s a commonly used reactive programming library.
- AdonisJS - With Node.js, building a full-featured web framework is possible.
Setting Up Development Environment
- Go to node.js official website and install node.js. After installing, enter the command “node -v” to check if the node is installed properly.
- Run npm init to produce the package.json file for Node.js. This will prompt you to ask a series of questions about your project. This instructs you on how to set up a typical Node.js project.
- Typescript dependencies are required to set up Typescript with Node.js. Run the following command to install the Typescript compiler package:
npm install -g typescript (2)
- The Typescript compiler will be installed worldwide with the command above. This implies that each project you create on your computer can use Typescript dependencies without reinstalling the Typescript package.
- To see if the compiler is installed, type tsc —version. (3)
- Open Visual Studio Code and Run a simple program to check
Function welcome(message) {
Return “Welcome, “ + message;
}
Let user = ‘Simplilearn’;
console.log(welcome(user));
Output: Welcome to Simplilearn
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Next Steps
Hope that this TypeScript with Node.js tutorial has provided you with a foundational grasp of TypeScript and NodeJS. Course certification will be advantageous if you learn these technologies and possibly work as a developer or programmer.
If you wish to learn these programming languages and work as a developer or programmer, course certification will benefit you. Enroll in the Full Stack Web Developer - MEAN Stack Master's program to learn typescript.
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