Angular 12 is the latest version in the Angular family. Angular applications are basically designed for Single Page Applications (SPAs), where all controls are required in single page architecture. Angular is an application-based design framework, which provides the Cross-Platform development environment for creating the most sophisticated SPAs. These SPAs are efficient enough for giving us a component to view the model environment, making it an MVC or MVVM application.
Angular provides a Progressive Web App architecture, which means that an application made in Angular gives us an App like experience with high-performance. Angular has zero-step installation, making its up- gradation using modern web capabilities possible, even if offline. Angular has the capability of making cross platform Desktop Apps. These can be created using MAC, Windows, or Linux OS using the same Angular methods. Angular can be rendered in Node.js, Microsoft .Net, PHP and many other servers by giving the output in HTML-CSS format. This even optimizes the App for SEO. Angular framework turns our templates into JavaScript Virtual machine codes which are highly optimized. With Angular CLI, the Command Line tools, we can build and deploy apps faster than ever before. Angular uses Karma for unit tests and Protractor for scenario tests, making the applications made in Angular more stable. To know more about the fundamentals of development, check out Full Stack Web Development Online classes.
Here is an article on angular cli.
In this Article we are going to talk about how to install Angular 12 in macOS. We will be covering the following contents:
- Pre-requisites
- The Pre-requisites for installation
- Download and Install Node.js
- The Download Site Address
- Instructions to Install Node.js
- Test Installation of Node.js
- Install Angular CLI
- How Node.js helps in installing Angular CLI
- Testing the installation of Angular CLI
- Create New Angular Application
- A Basic Hello-World Application in Angular
- Serve Angular Application
- Running the Hello-World Application
- Check the Output
- Check the Browser for the Output
- Conclusion
Pre-requisites:
Mentioned below are the pre-requisites for the installation of Angular in MAC OS.
The Pre-requisites are:
- MAC OS->10.10 plus installed in your PC
- At least 4 GB RAM
- A Hard drive memory of 10 GB free
- Administrator account for installing software in MAC OS or User account with privilege to install and unrestricted access to all related websites for Node.js and Angular.
Download and Install Node.js
Node.js is an open-source software which is used to run JavaScript code outside a browser. Node.js is cross-platform making it suitable for major operating systems. It helps developers to use JavaScript in Network Applications, Command Line Tools, normal Web Applications, Web APIs, and more. It provides Dev Tooling local Web Server for live reloading and development experience. Wondering where to begin your web development career? Enroll in Website Development courses.
Thus, Node.js is an Open-Source Server environment that allows developers to run JavaScript on the server.
So, before installing Angular 12, we need to install Node.js in the System.
Download Node.js
Open the following site in the browser.
(Download the Node.js source code or a pre-built installer for your platform, and start developing today). We get the site as follows:
Download the LTS version of the software with the latest features. This gives us three versions for different operating systems:
- Windows Installer (.msi) :
- 32-bit (node-v14.15.0-x86.msi)
- 64-bit (node-v14.15.0-x64.msi)
- Windows Binary (.zip)
- 32-bit (node-v14.15.0-x86.zip)
- 64-bit (node-v14.15.0-x64.zip)
- macOS Installer (.pkg)
- 64-bit (node-v14.15.0.pkg)
- macOS Binary (.tar.gz)
- 64-bit (node-v14.15.0-darwin-x64.tar.gz)
- Linux Binaries (x64)
- 64-bit (node-v14.15.0-linux-x64.tar.xz)
- Linux Binaries (ARM)
- ARMv7 (node-v14.15.0-linux-armv7l.tar.xz)
- ARMv8 (node-v14.15.0-linux-arm64.tar.xz)
- Source Code
- SmartOS Binaries
- 64-bit (node-v14.15.0-sunos-x64.tar.xz)
- Docker Image
- Official Node.js Docker Image
- Linux on Power LE Systems
- 64-bit (node-v14.15.0-linux-ppc64le.tar.xz)
- Linux on System z
- 64-bit (node-v14.15.0-linux-s390x.tar.xz)
- AIX on Power Systems
- 64-bit (node-v14.15.0-aix-ppc64.tar.gz)
Download the macOS Installer (.pkg) : 64-bit (node-v14.15.0.pkg). This is the latest version of Node installable package.
Install the .pkg in your operating system by clicking on the installer. Once clicked, the .pkg file opens the installer wizard. Click on continue to move to the next page.
Click on continue to continue to the next page with License Terms and Conditions. You will be asked to accept the license, please do so by clicking on Agree, after reading the terms and conditions.
Click on Continue to move to the next page.
Once you have clicked on continue, you will get the install now page:
Click on Install, and enter the login credentials, the username and password, and then click on Install Software:
Once successfully installed, Node.js shows the following summary of the installation:
Click on Close to close the wizard.
Set the /usr/local/bin in your $PATH so that you can access the node and npm executable files. To verify the same open the terminal and type:
Echo $PATH
Test Installation of Node.js
Once the package is installed, open the Terminal and type the following command:
node –v
You will get the version of Node.js displayed.
v14.15.0
and
npm –v
You get the version of npm displayed.
6.4.1
Install Angular CLI
Angular CLI has a wide range of commands for Angular Applications. It helps us in managing, testing, and building Angular applications.
Once Node.js is installed in our system, we can use npm to install software globally on our system. Use –g option in the npm command to install the Angular CLI tool globally. Once done so it will be accessible to all users and applications on the mac OS system.
To install Angular CLI with the Node.js npm tool, use the following command:
$ sudo npm install -g @angular/cli
This command will install the latest Angular CLI version available at Angular site on your macOS system.
If you require other than the latest version of Angular, then use the following command in your mac OS:
For Angular 6:
$ npm install -g @angular/cli@6#Angular 6
For Angular 7:
$ npm install -g @angular/cli@7 #Angular 7
For Angular 8:
$ npm install -g @angular/cli@8 #Angular 8
For Angular 9:
$ npm install -g @angular/cli@9 #Angular 9
Testing the installation of Angular CLI
Once the installation is successful, Angular CLI will provide a command ng to be used for command line operations.
Type the following command to check the version of Angular CLI:
$ ng --version
Or
$ ng version
And we should get the following output:
This completes your Angular installation. Now let us make a “Hello World” Application in Angular. Following section describes how to make a basic application in Angular.
Create New Angular Application
Create a folder for your application in the desired location on your system and open it on your favorite file browser.
A Basic Hello-World Application in Angular
Open a new terminal and move to your folder created for the application and type in the following command to create your app folder using ng create command as below.
$ ng create hello-world
Or
$ ng new hello-world
For the Query “Would you like to add Angular Routing?” type Yes.
For the Query “Which style sheet format would you like to choose?” move your cursor to point to “CSS” and click enter.
Then it would take some time for further installation of the application folder, so we need to have patience in this respect.
At last, when the command is executed successfully, Angular creates a skeleton application under the folder. It also includes a bunch of files and other important necessities for the application.
Serve Angular Application
Once our Hello-World project is created change the current directory to project directory by cd command and run application using ng serve command as shown below:
$ cd hello-world
$ ng serve
We can leave the ng serve command running in the terminal as it will automatically refresh the browser each time we make and save changes in our Angular application. This makes Angular development quick and iterative.
Running the Hello-World Application
Once run, you can access your Angular application on localhost port 4200, which is the default host and port used by any Angular application. To get the output, type in your favorite browser, address bar the following:
http://localhost4200
If another application is running on that address, you can simply run the command.
$ ng serve--port
It will generate a different port for you to navigate to through the web browser.
Check the Output
Typically, the browser looks something like this:
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Conclusion
Through Angular 12 we can develop very dynamic applications.
However, sometimes we may require to undo the installation of Angular CLI.
We can uninstall angular cli through command terminal by using the npm tool. Run the following command in the terminal to Uninstall Angular:
$ npm uninstall -g @angular/cli
Angular applications are still SPAs or Single Page Applications in their Core. The loading of the Application is still triggered by a main request to the server. The command ng serve helps us to serve this request every time we make changes to our scripts. As our HTML or JavaScript changes, so does the new server request, sending the new changed response to the web browser.
