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Create a new project
You begin by creating an initial application using the Angular CLI. Throughout this tutorial, you’ll modify and extend that starter application to create the Tour of Heroes application.
In this part of the tutorial, you'll do the following:
- Set up your environment.
- Create a new workspace and initial application project.
- Serve the application.
- Make changes to the application.
For the sample application that this page describes, see the .
Set up your environment
To set up your development environment, follow the instructions in Local Environment Setup.
Create a new workspace and an initial application
You develop applications in the context of an Angular workspace. A workspace contains the files for one or more projects. A project is the set of files that comprise an application or a library. For this tutorial, you will create a new workspace.
To create a new workspace and an initial application project:
- Ensure that you are not already in an Angular workspace folder. For example, if you have previously created the Getting Started workspace, change to the parent of that folder.
- Run the CLI command
ng newand provide the nameangular-tour-of-heroes, as shown here:
- The
ng newcommand prompts you for information about features to include in the initial application project. Accept the defaults by pressing the Enter or Return key.
The Angular CLI installs the necessary Angular npm packages and other dependencies. This can take a few minutes.
It also creates the following workspace and starter project files:
- A new workspace, with a root folder named
angular-tour-of-heroes. - An initial skeleton app project in the
src/appsubfolder. - Related configuration files.
The initial app project contains a simple Welcome application, ready to run.
Serve the application
Go to the workspace directory and launch the application.
cd angular-tour-of-heroes ng serve --openThe ng serve command builds the app, starts the development server,
watches the source files, and rebuilds the application as you make changes to those files.
The --open flag opens a browser to http://localhost:4200/.
You should see the application running in your browser.
Angular components
The page you see is the application shell.
The shell is controlled by an Angular component named AppComponent.
Components are the fundamental building blocks of Angular applications. They display data on the screen, listen for user input, and take action based on that input.
Make changes to the application
Open the project in your favorite editor or IDE and navigate to the src/app folder to make some changes to the starter application.
You'll find the implementation of the shell AppComponent distributed over three files:
app.component.ts— the component class code, written in TypeScript.app.component.html— the component template, written in HTML.app.component.css— the component's private CSS styles.
Change the application title
Open the component class file (app.component.ts) and change the value of the title property to 'Tour of Heroes'.
Open the component template file (app.component.html) and
delete the default template generated by the Angular CLI.
Replace it with the following line of HTML.
The double curly braces are Angular's interpolation binding syntax.
This interpolation binding presents the component's title property value
inside the HTML header tag.
The browser refreshes and displays the new application title.
{@a app-wide-styles}
Add application styles
Most apps strive for a consistent look across the application.
The CLI generated an empty styles.css for this purpose.
Put your application-wide styles there.
Open src/styles.css and add the code below to the file.
Final code review
Here are the code files discussed on this page.
Summary
- You created the initial application structure using the Angular CLI.
- You learned that Angular components display data.
- You used the double curly braces of interpolation to display the application title.