How can I import all exported identifiers from a Go package without using the package name?

Importing Everything from a Package

In Go, it is possible to import all exported identifiers from a package, eliminating the need to prefix them with the package name.

The Go Programming Language Specification states:

"If an explicit period (.) appears instead of a name, all the package's exported identifiers declared in that package's package block will be declared in the importing source file's file block and must be accessed without a qualifier."

For instance, consider the following code:

import "fmt"

func main() {
    fmt.Println("Hello, world")
}

This code can be simplified by using the dot import:

import . "fmt"

func main() {
    Println("Hello, world")
}

In this example, the . (dot) in the import statement indicates that all exported identifiers from the fmt package should be imported. As a result, the fmt. prefix is no longer required when calling functions from that package.

Here is an example to further illustrate this concept:

package main

import . "fmt"

func main() {
    Println("Hello, world")
}

When you run this code on the Go Playground, you will get the following output:

Hello, world

This demonstrates that the dot import successfully allows you to access the exported identifiers from the fmt package without needing to prefix them with fmt..

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