How to: console.log in GOlang

Outputting to your shell or terminal to inform the user of the outcome of a program or valuable debugging information is an essential of every programming language.

JavaScript

In JavaScript console.log will print to the browser console or your shell where node.js is running your file:

// strings
console.log('Hello World!');
// multiple parameters
console.log('Hello', 'World!', 666);

GOlang

In Golang you can output text and variables to the terminal via various methods, but fmt is a commonly used one.

package main

import "fmt"

func main() {
  fmt.Println("Hello World!")

  // Hello Jonathan!
  name := "Jonathan"
  fmt.Printf("Hello %s!\n", name)
  fmt.Printf("1 + 1 is %d!\n", 1+1)
  // %v for unknown variable types
  fmt.Printf("unknown variable type: %v without newline", 40.1)
}