Uniqueness of TypeScript
To understand why TypeScript has gained such popularity, it’s essential to see how it differentiates itself from other alternative popular software languages:
- Better Tooling: TypeScript’s static typing feature enables better development tooling like improved autocompletion, type checking, and advanced refactoring capabilities, leading to an enhanced development experience.
TypeScript vs. Other Popular Languages
TypeScript also holds its own when compared with other popular software languages:
- Compared to Java: While Java offers static typing and OOP, TypeScript’s syntax is arguably simpler and more flexible. TypeScript also allows for server-side and client-side development, unlike Java, which is predominantly used for server-side programming.
- Compared to Python: Python is another dynamically typed language. While Python is widely loved for its simplicity and readability, TypeScript’s static typing and powerful tooling make it a better choice for larger, more complex applications.
In the upcoming guide, we will walk you through the process of installing TypeScript on Ubuntu 22.04 Jammy Jellyfish or Ubuntu 20.04 Focal Fossa using the latest LTS release from NodeSource.
Table of Contents
Section 1: Setting Up Node.js for TypeScript Development
Step 1: Ensuring Your Ubuntu System is Up-to-Date
Before diving into the installation process, it’s paramount to update your system’s existing packages. This step is a vital best practice in system administration and software management. It helps prevent potential software conflicts by ensuring that you are running the most recent versions of all installed software.
To update your system, execute the following command:
sudo apt update && sudo apt upgrade
This command performs two operations sequentially:
sudo apt update: This updates the package lists for upgrades. It fetches the package information from all configured sources in your Ubuntu system.
sudo apt upgrade: This upgrades all the updatable packages on your system. After updating the package lists, this command installs the latest versions of your installed packages.
Step 2: Installing Essential Packages
To ensure the Node.js installation proceeds without any hiccups, we need to install a few additional packages. These packages aid in various aspects of software management and might be needed during the installation process. These include
curl for transferring data with URLs,
git for version control, and
wget for network downlinking.
To install these packages, run the following command:
sudo apt install curl git wget -y
-y flag is used to automatically answer ‘yes’ to any prompts, allowing the installation to proceed without manual intervention.
Step 3: Importing the NodeSource Repository
The NodeSource repository is our go-to source for installing Node.js. This repository provides the most up-to-date versions of Node.js, making it a perfect choice for our TypeScript setup.
First, we need to import the NodeSource repository into our system. NodeSource provides a script to do this. The following command fetches the script and executes it:
curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo bash -
In this command,
curl -fsSL https://deb.nodesource.com/setup_lts.x fetches the script from the NodeSource URL, and
| sudo bash - pipes it to bash, which executes the script with root permissions.
Next, we need to update the system’s package lists to include packages from the newly added NodeSource repository:
sudo apt update
Step 4: Installing Node.js
With everything set, it’s time to install Node.js. The following command installs Node.js from the NodeSource repository:
sudo apt install nodejs
Step 5: Verifying the Node.js Installation
After the installation process completes, it’s always a prudent idea to verify the version of Node.js installed. This verification step ensures that the installation was successful and that Node.js is ready for use in our TypeScript environment.
To check your Node.js version, use the following command:
This command will output the installed version of Node.js, confirming a successful installation. If everything has proceeded correctly, you’re now ready to move onto the next steps of setting up your TypeScript development environment.
Section 2: Installing TypeScript on Your System
Step 1: Ensuring NPM is Up-to-Date
Before commencing the TypeScript installation, it’s crucial to confirm that npm (Node Package Manager) is current. npm acts as the backbone for managing Node.js packages, and keeping it updated guarantees access to the latest features and security patches, contributing to a secure and efficient development environment.
To update npm to its latest version, execute the following command:
sudo npm install npm@latest -g
In this command,
npm install npm@latest fetches the most recent version of npm, and
-g installs it globally, making it available across the entire system.
Step 2: Installing the TypeScript Compiler
To install the TypeScript compiler, run the following command:
sudo npm install -g typescript
In this command,
npm install -g typescript fetches the TypeScript package and installs it globally, making it accessible across the whole system.
Step 3: Verifying the TypeScript Installation
Once the installation is complete, validating that the TypeScript compiler was installed successfully is crucial. This verification step helps ensure everything is set up correctly and the TypeScript compiler is ready for use, setting the stage for a seamless TypeScript development experience.
To check the installed version of the TypeScript compiler, execute:
This command will output the installed version of the TypeScript compiler, confirming a successful installation. If everything has proceeded as expected, you’re now ready to start developing with TypeScript on your Ubuntu system.
Section 3: Establishing a TypeScript Test Project
Now that we’ve successfully installed TypeScript and its compiler on your system, it’s time to set up a test project. This step helps verify that TypeScript is functioning correctly, as well as providing a sandbox for you to familiarize yourself with TypeScript syntax and operation. The process will involve creating a new directory, initializing a new TypeScript project, and writing a simple TypeScript file.
Step 1: Creating a New Project Directory
The first step in setting up a TypeScript test project is to create a new directory. This directory will house all the files related to our test project. Organizing your projects into separate directories is a good practice as it helps maintain a clean and organized workspace.
Run the following command to create a new directory named
This command creates a new directory named
ts-test-project. Feel free to replace
ts-test-project with any name you prefer.
Next, navigate to the newly created directory by using the
Step 2: Initializing a New TypeScript Project
With the directory in place, we can now initialize a new TypeScript project. Initializing a project creates a
tsconfig.json file, which is a configuration file for TypeScript. This file specifies the root files and compiler options required to compile the project.
To initialize a new TypeScript project, run the following command:
After running this command, you should see a
tsconfig.json file in your project directory. This file will have sensible defaults provided by TypeScript, which you can modify later according to your project’s needs.
Step 3: Creating a Simple TypeScript File
For our test project, let’s create a simple TypeScript file. In this file, we’ll write a basic “Hello, World!” program. This will allow us to test the TypeScript compiler and confirm that everything is working as expected.
Create a new file named
hello.ts using a text editor. In this example, we’ll use
hello.ts file, write the following TypeScript code:
let message: string = "Hello, World!"; console.log(message);
Save and close the file. This simple program declares a string variable named
message, assigns the string “Hello, World!” to it, and then logs this message to the console.
Step 4: Compiling and Running the TypeScript File
To compile the TypeScript file, use the TypeScript compiler (
This command will compile the
Upon running this command, you should see “Hello, World!” printed to your console. If you see this output, congratulations! You’ve successfully set up a TypeScript test project on your system.
Final Thoughts on TypeScript Installation on Ubuntu Linux
Next, we installed TypeScript itself, using npm to install TypeScript and its command-line interface tool globally. Once installed, we validated the successful installation of TypeScript by checking the version. Finally, we created a test project to verify the correct functioning of TypeScript. This allowed us to create and compile a simple TypeScript file, confirming that the TypeScript compiler was working as expected.
Following this guide, you should now have a fully functioning TypeScript environment on your Ubuntu system. This foundation will enable you to confidently develop TypeScript projects, whether you’re a seasoned developer or just getting started with TypeScript.
Additional Resources and Links
Here are some valuable resources to deepen your understanding of TypeScript and its usage:
- TypeScript Official Documentation: The official TypeScript documentation is a comprehensive resource that covers everything from basic to advanced TypeScript concepts. This is a must-read for anyone serious about learning TypeScript.
- TypeScript GitHub Repository: The TypeScript GitHub repository is a valuable resource for those interested in the development of TypeScript. Here, you can access the source code, report issues, contribute, and keep up to date with the latest changes and improvements.
- Node.js Official Documentation: Node.js is an essential component when working with TypeScript. The official Node.js documentation provides in-depth coverage of Node.js features, API references, and guides on using Node.js effectively.