Basics

TS Installation

Installing TypeScript

TypeScript installation uses npm to set up the compiler for development.

Prerequisites

Before you can install TypeScript, you need to have Node.js and npm (Node Package Manager) installed on your machine. These tools are essential for managing packages and dependencies in a JavaScript environment. If you haven't installed Node.js yet, you can download it from the official Node.js website.

Installing TypeScript Globally

Installing TypeScript globally allows you to use the TypeScript compiler from the command line in any project. To install TypeScript globally, open your terminal or command prompt and run the following command:

After the installation completes, you can verify the installation by checking the TypeScript version:

Installing TypeScript Locally

Alternatively, you can install TypeScript locally within a project. This method is useful for ensuring that your project uses a specific TypeScript version, regardless of the global version installed. To do this, navigate to your project's directory and execute the following command:

This command adds TypeScript as a development dependency in your project's package.json file.

Initializing a TypeScript Project

Once TypeScript is installed, you can initialize a new TypeScript project by creating a tsconfig.json file. This file contains configuration options for the TypeScript compiler. To create this file easily, you can use the following command:

The tsconfig.json file is now generated in your project directory, and you can customize it to suit your project's needs.