In this article, you will learn how you can install Angular CLI on your Windows machine and use it to create real-life Angular Applications/Projects.
As you know, Angular is popularly used to create SPAs (Single page applications). Angular is an in-demand, open-source, and modern web application development framework by Google, as compared to all other Libraries and Frameworks like ReactJs, VueJs, MithrilJs, etc.
The reasons behind this are many. Angular provides you full access to use all its sub-packages like routing, Async calls, Security, etc.
Introduction — What you will learn
In this blog, we will cover the installation of Angular on Windows. By end of the article, you will understand how to -
- Install Node/npm on your machine.
- Use and install Angular CLI globally.
- Run Angular CLI commands.
- Create an initial workspace for the application.
- Run the Angular application in Browser.
Get to know more about angular cli.
In order to continue, you must have —
- Windows Machine
- Good Internet Connectivity
- Windows user account with all/admin installation privileges where you can install any packages freely.
PS: While working with Angular, knowledge of TypeScript is good to have, but is not mandatory.
A brief note about Node.js
The very first thing required to install is Node.js. (If already installed, skip this part and jump to the next part of this blog.)
Angular requires the latest/stable version of Node.js in order to continue. Go to the official website in order to install Node.js on your machine locally.
You can install any version, the current one or latest stable version, as per your need. Just click on the button and it will start downloading the package on your machine.
Once downloaded click on the icons downloaded and follow the steps, till the installation is completed. To check the version installed of Node.js you can use the following command in a terminal/console window. —
node — — version
Need for NPM for Angular development
You can explore a number of packages available in the npm store here.
Note: Once you have installed Node.js it will automatically install NPM on your machine, and you can check the version installed using the below command.
Angular CLI — What it is and complete Installation guide
Earlier in the initial days of Angular, developers used to create whole architecture, webpack files, build process, etc for any project on their own from scratch which was quite a time-consuming and lengthy process. To make it easier for the developer, Angular team come up with the easy-to-use tool named Angular CLI.
As the name suggests CLI (command line interface) provides a user (developer) friendly interface where you can run commands to make your development life easier and faster.
Angular CLI comes with a number of commands available to use from creating a new project, to creating components, creating a routing configuration file, services, and many more.
Installation Process of Angular CLI
To install the Angular CLI on your machine, open the terminal window and run the following command:
npm install -g @angular/cli
where -g denotes that CLI is being installed globally to your machine, which means you can create or run any command of CLI anywhere on your machine. Once you run the above command CLI will be installed on your machine, and you can verify the version installed using the following command:
To know more about Angular CLI commands, you can refer to this blog which contains a number of commands to use.
Creating a Project using Angular CLI
Now, let’s create our first ever Angular project using Angular CLI. Open your terminal window and type the command below on your machine.
ng new hello-world
Here ng is our CLI prefix, new denotes that we are creating a new project and hello-world is our project name. You can choose any name you want.
After running this command you will find the full architecture of the project in the directory where you run this command. The project folder will be something like below in the image -
Angular Project architecture
The first file to render on running this application will be index.html which present in the src folder.
- src folder contains Source files for the root-level application project.
- assets folder contains all the static assets like images, fonts, etc.
- node_modules This folder is created while you run npm installby package manager (npm) and it contains all the project dependencies or any third party modules required for the project.
- e2e folder contains all the source code related to Test Cases.You can customise it as per your requirements.
- README.md file is being used as documentation for the app.
- Package.json configures npm dependencies which are available for the project in the workspace along with their versions specified.
For more details about components/Service and source code you can explore this link. Run the application
one with the installation process of Angular application via CLI, it’s time to run the application locally. Angular CLI comes with complete tool-chain/commands for the development of front-end applications on your machine.
Run the following command on the terminal (Navigate to the project directory if you are not in that directory).
ng serve --open
The --open (or just -o) option automatically opens your browser to http://localhost:4200/.
ng servecommand will serve your application on localhost server which you can check by navigating to your browser with the below URL http://localhost:4200/. You can customise the port as per your requirement.
Accessing Angular Web Interface
ng serve command may take a few seconds to run your application, and once completed, you should see a web page similar to the following. And we are done!
Now you can make changes in the default component’s template which is app.component.html .
Also, moving forward, you can generate a number of components/service/routing files using CLI commands as per your requirements and keep learning.
In this blog you have learnt -
- What is Node/NPM and how you can install and use it,
- What is Angular CLI and how you can use it after installing it on your Windows machine,
- How to create a new Angular project from scratch using CLI commands and run it.
Now that you have basic hands-on knowledge of getting started with an Angular application, you can start exploring Angular further.
If you have any questions/doubts related to this blog, please let us know in the comment box below...we would be more than happy to help you out!
Uninstall angular cli
There are cases when you need to uninstall Angular-CLI from your operating system, you can simply do so by running this below command on terminal -
npm uninstall -g @angular/cli
It's always recommended to run the command
npm cache clean
After un installation of Angular CLI from your system in order to avoid unwanted errors while installing it again.