How to Create and Run a TypeScript File on Windows

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TypeScript is a superset of JavaScript that adds additional features and support for static types to JavaScript. To get started, you'll need to have TypeScript installed on your system.

 

Here are the steps to create and run a TypeScript file in the Windows terminal:


1) Install Node.js:

  • TypeScript requires Node.js to run. Ensure that Node.js is installed on your system. If not, download and install the latest version of Node.js from the official website:  https://nodejs.org/

2) Install TypeScript:

  • Open the Windows terminal (Command Prompt or PowerShell).
  • Run the following command to install TypeScript globally:

npm install -g typescript

  • This will install TypeScript on your system.
3) Create a TypeScript file:

  • Open a text editor of your choice, such as Visual Studio Code.
  • Create a new file with the .ts extension (e.g., myFile.ts).
  • In the file, you can write TypeScript code. For example, let's create a file that displays a simple message in the console:

const message: string = 'Hello, TypeScript!';
console.log(message);


4) Compile the TypeScript file:

  • Go back to the Windows terminal.
  • Navigate to the directory where you saved the TypeScript file. For example, if the file is in C:\MyProjects, you can use the following command: 

cd C:\MyProjects

  • Once in the correct directory, execute the following command to compile the TypeScript file:

tsc myFile.ts

  • This will invoke the TypeScript compiler (tsc) and generate a corresponding JavaScript file for your TypeScript file.

5) Run the generated JavaScript file: 

  • After compilation, you can run the resulting JavaScript file as usual in Node.js. In the Windows terminal, execute the following command:

node myFile.js

  • This will run the generated JavaScript file from the TypeScript file, and you will see the message 'Hello, TypeScript!' displayed in the console.

 

These are the basic steps to create and run a TypeScript file in the Windows terminal. Remember that TypeScript is a typed language, so you can leverage static typing features for improved error detection and auto-completion in your code.

 

You can also use a package manager like npm to create a more complex TypeScript project with multiple dependencies. However, the above steps provide the foundation for you to start writing and running TypeScript code on Windows.

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