Control Structure

• if - else

  if user != nil{
  
  } else {
  
  }
  
  if message := "hello"; user != nil{
      // message is only available inside the if and else
  } else {
  
  }
  

• switch(reloaded!)
  This is a simple switch operation. No break is needed; you can fallthrough to the next case, though

  switch day{
      case "Monday":
          fmt.Println("It is Monday")
      case "Saturday":
          fallthrough
      case "Sunday":
          fmt.Println("This is sunday")
      default:
          fmt.Println("It is another working day")
  }
  

  Switch with condition
  It can replace large ifs

  switch {
      case user == nil:
  
      case user.active == false:
  
      case user.deleted == true:
  
      default:
  }
  

• for

  for i:=0; i<len(collection); i++{
  
  }
  
  // For range, similar to "for in" in JS
  for index:=range collection {
  
  }
  
  // For range, similar to "foreach"
  for key, value := range map {
  
  }
  

  We can emulate a while by using a boolean expression

  endOfGame := false
  for endOfGame {
      // process Game Loop
  }
  
  for count < 10 {
      count += 1;
  }
  
  for {
      // Infinite loop
  }
  

• There is no while or do-while

• No parenthesis are needed for boolean conditions or values

• Only one type of equality operators ==

• Other operators != < > <= >=