A simple helloworld for Golang in VsCode.

Golang the compiler

Download Golang installer. A least on Mac the installer shall be able to deal with updating OS PATH environment variable with $GOPATH/bin.

Debugger

go install -v github.com/go-delve/delve/cmd/dlv@latest 

VsCode IDE

• Install Visual Studio Code
• golang extension To launch VS Code Quick Open press (Ctrl + P), type: ext install Go, hit enter. Follow basic instructions.

The Project

Inside Visual Studio Code Open Folder Ctrl + Shift + E , e.g.: $USER\code\hello\. Then Open hello.go from that folder. Or make new file (Ctrl + N) and save it on this folder:

package main

import "fmt"

func main() {
    fmt.Println("Hello World!")
    i := 101
    fmt.Println(i)
}

Some useful hotkeys:

• Ctrl + Shift + D - Open Debugger
• F9 - set or toggle Breakpoint. Try this line i := 101
• F5 - Start Debugging or to Run the Application. If asked to select environment: select Go
• F10 - Step Over
• F11 - Step Into
• Shift + F11 - Step Out
• Shift + F5 - Stop Debugging
• Ctrl + Shift + F5 - Restart Debugging

Typical aka untouched launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "remotePath": "",
            "port": 2345,
            "host": "127.0.0.1",
            "program": "${workspaceRoot}",
            "env": {},
            "args": [],
            "showLog": true
        }
    ]
}