By default, Visual Studio Code (VS Code) does not automatically compile code when you open a new file. However, you can configure VS Code to perform certain tasks, including compilation, when you open a file.

Here's how you can set up an extension called "Tasks" in VS Code to automatically compile your code when you open a new file:

  1. Install the "Tasks" extension in VS Code. To do this, open VS Code, go to the Extensions view (click on the square icon on the left sidebar or press Ctrl+Shift+X), and search for "Tasks". Select the "Tasks" extension by actboy168 and click the "Install" button.

  2. Once the extension is installed, create a .vscode directory in the root of your project if it doesn't already exist.

  3. Inside the .vscode directory, create a tasks.json file. This file will define the tasks for your project.

  4. Open the tasks.json file and configure it to run your compilation command when a file is opened. Here's an example configuration for compiling a C++ file using g++:

{ "version": "2.0.0", "tasks": [ { "label": "Compile", "type": "shell", "command": "g++", "args": ["${file}", "-o", "${fileBasenameNoExtension}"], "group": { "kind": "build", "isDefault": true }, "presentation": { "reveal": "silent" } } ] }

This configuration defines a task named "Compile" that runs the g++ command with the currently opened file as the input. It uses ${file} to refer to the file path, ${fileBasenameNoExtension} to refer to the filename without the extension, and -o to specify the output file name.

  1. Save the tasks.json file.

Now, when you open a new file in your project, you can trigger the compilation by using the "Tasks: Run Task" command. Press Ctrl+Shift+B, select the "Compile" task, and it will compile the currently opened file.

Remember to adjust the configuration in tasks.json according to your specific programming language and build tools.

Note that the example provided assumes you have the necessary build tools installed and configured on your system.

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