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If you'd like to see a full MEAN (MongoDB, Express, Angular, Node.js) stack example, look at MEAN.JS.
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There you'll find the Debugging with Angular CLI recipe which also uses the Angular CLI and goes into detail on debugging the generated project's unit tests. The VS Code team has created recipes for more complex debugging scenarios. There are lots of great samples and starter kits available to help build your first Angular application. In this tutorial, we used the Angular CLI to create a simple Angular application. You can step through your source code ( F10), inspect variables such as AppComponent, and see the call stack of the client side Angular application.įor more information about the debugger and its available options, check out our documentation on browser debugging. Refresh the page and you should hit your breakpoint. The source code where the breakpoint is set runs on startup before the debugger was attached so we won't hit the breakpoint until we refresh the web page. Press F5 or the green arrow to launch the debugger and open a new browser instance. Go back to the file and change the title string in AppComponent to "Hello World".
Angular json editor update#
Let's update the sample application to "Hello World". A Peek window will open showing the AppComponent definition from.
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Open the file and put the cursor over AppComponent in the bootstrap property declaration, right click and select Peek Definition. Through the TypeScript language service, VS Code can also provide type definition information in the editor through Go to Definition ( F12) or Peek Definition ( ⌥F12 (Windows Alt+F12, Linux Ctrl+Shift+F10)). ATA pulls down the npm Type Declaration files ( *.d.ts) for the npm modules referenced in the package.json. VS Code uses the TypeScript language service for code intelligence ( IntelliSense) and it has a feature called Automatic Type Acquisition (ATA). You can click the information button ( i) to see a flyout with more documentation. Items such as variables, classes and Angular decorators are a few examples where you'll be presented with this information.Īs you start typing in, you'll see smart suggestions and code snippets. You'll notice that VS Code has syntax highlighting for the various source code elements and, if you put the cursor on a parenthesis, the matching bracket is also selected.Īs you hover your mouse over text in the file, you'll see that VS Code gives you information about key items in your source code. Now expand the src\app folder and select the file. To open your Angular application in VS Code, open another terminal (or command prompt) and navigate to the my-app folder and type code. We'll leave the web server running while we look at the application with VS Code. You should see "Welcome to app!!" on in your browser. Let's quickly run our Angular application by navigating to the new folder and typing ng serve to start the web server and open the application in a browser: cd my-app ng serve
Angular json editor install#
This may take a few minutes to create the Angular application in TypeScript and install its dependencies. My-app is the name of the folder for your application. You can now create a new Angular application by typing: ng new my-app To install the Angular CLI, in a terminal or command prompt type: npm install -g may take a few minutes to install. Tip: To test that you have Node.js and npm correctly installed on your machine, you can type node -version and npm -version. npm is included with Node.js which you can install from Node.js downloads. To install and use the command line interface as well as run the Angular application server, you'll need the Node.js JavaScript runtime and npm (the Node.js package manager) installed. We'll be using the Angular CLI for this tutorial. The Visual Studio Code editor supports Angular IntelliSense and code navigation out of the box.