How to call a function from another package in Go?

Question

I have two files main.go which is under package main, and another file with some 
functions in the package called functions.

My question is: How can I call a function from package main?

File 1: main.go (located in MyProj/main.go)
package main

import "fmt"
import "functions" // I dont have problem creating the reference here

func main(){
    c:= functions.getValue() // <---- this is I want to do
}

File 2: functions.go (located in MyProj/functions/functions.go)
package functions

func getValue() string{
    return "Hello from this another package"
}

Gopher · Accepted Answer

You import the package by its import path, and reference all its exported symbols (those starting with a capital letter) through the package name, like so: File 1: main.go (located in MyProj/main.go) package main import ( "fmt" "MyProj/functions" ) func main(){ fmt.Println(functions.GetValue()) } File 2: functions.go (located in MyProj/functions/functions.go) package functions // `getValue` should be `GetValue` to be exposed to other packages. // It should start with a capital letter. func GetValue() string{ return "Hello from this another package" }

Go Language

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