Question

This may sound stupid but how do I define a global variable in Go? const myglobalvariable = "Hi there!" doesn’t really work…

I just want to get the command line argument and after this I want to print it. I do this using this code snippet:

package main

import (
    "flag"
    "fmt"
)

func main() {
    gettext();
    fmt.Println(text)
}

func gettext() {
    flag.Parse()
    text := flag.Args()
    if len(text) < 1 {
        fmt.Println("Please give me some text!")
    }
}

The problem is that it just prints an empty line so I thought about declaring a global variable using const myglobalvariable = "Hi there!" but I just get the error cannot use flag.Args() (type []string) as type ideal string in assignment…
…I know this is a noob question so I hope you can help me…

Answer 1

Why do you need a global variable? For example,

package main

import (
    "flag"
    "fmt"
)

func main() {
    text := gettext()
    fmt.Println(text)
}

func gettext() []string {
    flag.Parse()
    text := flag.Args()
    if len(text) < 1 {
        fmt.Println("Please give me some text!")
    }
    return text
}