To install and set up Dart in Visual Studio Code (VS Code), follow these steps:

Step 1: Install Dart SDK

1. Download the Dart SDK:
   • Go to the Dart SDK page.
   • Follow the instructions to download and install the Dart SDK for your operating system.
2. Verify Dart Installation:
   • Open a terminal or command prompt.
   • Run the command dart –version to ensure Dart is installed correctly and to check the installed version.

Step 2: Install VS Code

If you don’t have Visual Studio Code installed, download and install it from the VS Code website.

Step 3: Install the Dart Extension in VS Code

1. Open VS Code.
2. Open Extensions View:
   • Click on the Extensions icon in the Activity Bar on the side of the window.
   • Alternatively, you can open it by pressing Ctrl+Shift+X (Windows/Linux) or Cmd+Shift+X (Mac).
3. Search for Dart:
   • In the search box, type “Dart”.
4. Install the Dart Extension:
   • Click on the “Dart” extension from the list.
   • Click the “Install” button.

Step 4: Configure Dart in VS Code

1. Create a New Dart Project:
   • Open the terminal in VS Code by pressing Ctrl+` (Windows/Linux) or Cmd+` (Mac).
   • Navigate to the directory where you want to create your Dart project.
   • Run the command dart create my_dart_app to create a new Dart project named my_dart_app.
2. Open the Dart Project:
   • Open the newly created project in VS Code.
   • You can open it by going to File > Open Folder… and selecting the project folder.
3. Run a Dart File:
   • Open the main.dart file located in the bin directory of your Dart project.
   • Press F5 to run the Dart program.
   • You should see the output of your Dart program in the Debug Console.

Step 5: Install the Flutter Extension (Optional)

If you are planning to use Flutter along with Dart, you can also install the Flutter extension in VS Code:

1. Open Extensions View.
2. Search for Flutter.
3. Install the Flutter Extension.

This will provide additional tools and functionalities for developing Flutter applications.

With these steps, you should have Dart set up and ready to use in VS Code.

Install Dart in IntelliJ Idea

To install and set up Dart in IntelliJ IDEA, follow these steps:

Step 1: Install IntelliJ IDEA

1. Download IntelliJ IDEA:
   • Go to the IntelliJ IDEA website.
   • Download the appropriate version for your operating system (Community or Ultimate).
2. Install IntelliJ IDEA:
   • Follow the installation instructions for your operating system to install IntelliJ IDEA.

Step 2: Install Dart SDK

1. Download the Dart SDK:
   • Visit the Dart SDK page.
   • Follow the instructions to download and install the Dart SDK for your operating system.
2. Verify Dart Installation:
   • Open a terminal or command prompt.
   • Run the command dart –version to ensure Dart is installed correctly and to check the installed version.

Step 3: Install Dart Plugin in IntelliJ IDEA

1. Open IntelliJ IDEA.
2. Open the Plugins Settings:
   • Go to File > Settings (or IntelliJ IDEA > Preferences on macOS).
   • In the left pane, select Plugins.
3. Search for Dart Plugin:
   • Click on the Marketplace tab.
   • In the search box, type “Dart”.
4. Install the Dart Plugin:
   • Find the Dart plugin in the list and click the Install button.
   • After installation, you may need to restart IntelliJ IDEA for the plugin to be fully integrated.

Step 4: Configure Dart SDK in IntelliJ IDEA

1. Open Project Settings:
   • Go to File > Project Structure.
2. Add Dart SDK:
   • In the left pane, select SDKs under Platform Settings.
   • Click the + button to add a new SDK.
   • Choose Dart SDK from the list.
   • Navigate to the directory where you installed the Dart SDK and select it.
3. Set Dart SDK for the Project:
   • In the left pane, select Modules.
   • Under the Dependencies tab, make sure the Dart SDK is selected for your project module.

Step 5: Create a New Dart Project

1. Create a New Project:
   • Go to File > New > Project.
   • Select Dart from the list of project types.
   • Click Next.
2. Configure Project Settings:
   • Set the project name and location.
   • Configure any other settings as needed.
   • Click Finish to create the project.

Step 6: Run a Dart File

1. Create a Dart File:
   • In your project, right-click on the lib directory (or any directory you prefer).
   • Select New > Dart File.
   • Name your Dart file (e.g., main.dart).
2. Write Dart Code:
   • Open the created Dart file and write your Dart code.

For example, add the following code to main.dart:

void main() {

  print('Hello, Dart in IntelliJ IDEA!');

}

          3.Run the Dart File:

• • Right-click on the Dart file in the Project Explorer.
  • Select Run ‘main.dart’ (or whatever you named your file).
  • You should see the output in the Run console.

By following these steps, you will have Dart set up and ready to use in IntelliJ IDEA.