.vscode/launch.json for golang

launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Build & Run",
            "type": "go",
            "request": "launch",
            "mode": "exec",
            "preLaunchTask": "go-build", // check tasks.json file
            "program": "exec"
        }
    ]
}