How to Use the Go Playground Effectively

Use the Go Playground by writing self-contained example functions in _test.go files that the doc.Examples function can extract and run. Ensure your package name ends in _test and your example function has no parameters or return values to make it playable.

package mypkg_test

import "fmt"

// ExampleHello demonstrates the Hello function.
func ExampleHello() {
	fmt.Println(Hello())
	// Output: Hello, World!
}

func Hello() string {
	return "Hello, World!"
}

The Go Playground lets you run small, isolated Go code snippets directly in your browser without installing anything. It works best when you write simple functions that don't rely on external files or complex system setups. Think of it as a sandbox where you can quickly test if a specific piece of logic works before adding it to your main project.