Running two projects at once in Visual Studio Code

See our documentation on multitarget debugging: https://code.visualstudio.com/Docs/editor/debugging#_multitarget-debugging

In your launch.json, just create a compounds section that contains the targets you want to debug

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "node",
            "request": "launch",
            "name": "Server",
            "program": "${workspaceRoot}/server.js",
            "cwd": "${workspaceRoot}"
        },
        {
            "type": "node",
            "request": "launch",
            "name": "Client",
            "program": "${workspaceRoot}/client.js",
            "cwd": "${workspaceRoot}"
        }
    ],
    "compounds": [
        {
            "name": "Server/Client",
            "configurations": ["Server", "Client"]
        }
    ]
}