Getting Started with TypeScript

By Nitin Pandit | Views: 35

As we know, TypeScript is an open-source programming language that builds on top of JavaScript by adding optional static typing, class-based object-oriented programming, and other features to make code easier to read, write, and maintain.

You can follow my last article to learn more about the TypeScript in details: What is Type Script?

Here are the steps to get started with TypeScript:

Step 1: Install TypeScript: You can install TypeScript globally using npm (Node Package Manager) by running the following command in your terminal:

npm install -g typescript

Step 2: Create a TypeScript file: Create a new file with a .ts extension in your favourite code editors like Visual Studio Code, Notepad++ or any other.

Step 3: Write some code: TypeScript supports all of the features of JavaScript, so you can start by writing some basic JavaScript code in your .ts file.

Step 4: Add types: TypeScript allows you to add types to your variables, functions, and parameters. This helps catch errors early in development and makes your code more self-documenting. Here's an example of how to add types to a function:

function greet(name: string) {
console.log("Hello, " + name + "!");
}
greet("TypeScript");

// Output: Hello, TypeScript

Step 5: Compile your code: TypeScript files cannot be run directly in the browser, so you need to compile your .ts file into a JavaScript file using the TypeScript compiler. You can do this by running the following command in your terminal:

tsc filename.ts

This will create a new JavaScript file with the same name as your TypeScript file.

Step 6: Run your code: You can now run your JavaScript file in the browser or on the server, depending on your use case.

Optional: Configure your TypeScript project: If you're working on a larger TypeScript project, you may want to create a tsconfig.json file to configure your TypeScript compiler options. You can find more information on how to do this in the TypeScript documentation.

That's it! With these steps, you should be able to get started with TypeScript and start writing more maintainable and self-documenting code.

Thank you for your feedback!