Package Level Variables

In Go, a package-level variable is a variable declared at the package scope, outside of any function or method. These variables are declared within the package's source file and are accessible to all functions and methods defined within the same package.

Package-level variables are sometimes called global variables because of their accessibility within the package, but they are limited to the scope of the package and are not global across the entire program

Here's an example of a package-level variable in Go:

package mypackage

import "fmt"

// This is a package-level variable
var PackageLevelVariable int

func FunctionUsingPackageVariable() {
    // Access the package-level variable
    fmt.Println(PackageLevelVariable)
}

In the code above, PackageLevelVariable is a package-level variable. It's accessible from within the FunctionUsingPackageVariable function as well as from other functions and methods defined within the mypackage package.