Learn Go - Variables Summary

variables.go

// Variables Examples
package main

import (
	"fmt"
	"strconv"
)

// package level var that is publically visible (uppercase)
var (
	P int = 2
)

// package level vars
var (
	actorName    string = "Elisabeth"
	companion    string = "Smith"
	doctorNumber int    = 3
	season       int    = 11
)

func main() {
	// delcare g - block level visibility
	var g int
	g = 43

	// declare h
	var h int = 44

	// declare i
	var i2 float32 = 45.0
	i := int(i2)
	ic := strconv.Itoa(i)

	// print things
	P = 66 // shadowing here
	fmt.Println(g, h, i)
	fmt.Printf("%v, %T\n", i, i)
	fmt.Println(P)
	fmt.Printf("%v, %T\n", ic, ic)
}