go-intro's Introduction

go-intro

Foray into Google's Go(lang)

Description

This package serves as a playground to get started with the Go language. Check out this cool article (sent to me by a friend) for the motivations behind Go

Syntax of the Go language

Variables in Go

There are 2 ways of doing this. Explicitly declaring the type of the variable or implicitly declaring a variable by assigning it a value and letting the compiler infer the type

var someVariable int
someVariable = 8

someVariable := 8

Printing in Go

import "fmt"

fmt.Println("This", "prints", "each", "word", "and adds a space automatically")
fmt.Print("All words are scrunched up with this print method.", "This word will come immediately after the full stop"

Running Go programmes

go run main.go

go build main.go

Functions in Go

func someFunction(someVariable int) int {
  fmt.Println("Going to return some integer")
  return someVariable
}

Pointers in Go

someVariable := 100
var somePointer *int
somePointer = &someVariable
fmt.Println("Printing out the variable pointed to by the pointer", *SomePointer)

Modifying scoped variables

func modifyVariable(var SomePointer *int) {
  *SomePointer += 1
}

*someVariablePtr := 8
modifyVariable(someVariablePtr)
fmt.Println("The new variable is:", someVariablePtr*)

if, else if and else conditionals

if (someCondition == true) {
  fmt.Println("The condition is true")
} else if (someCondition == false) {
  fmt.Println("The condition is false")
} else {
  fmt.Println("This a bug. Please report this.)
}

Switch statements in Go

switch someCondition {
case true: 
  fmt.Println("The condition is true")
case false:
  fmt.Println("The condition is false")
default:
  fmt.Println("This a bug. Please report this.)
}

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