function declaration

• Syntaxt

  func <nameOfTheFunction>(arg1 typ1, arg2 type2) <returnType> () {
      ...
  }
  

  e.g.

   func add(a int, b int) int {
       return a+b
   }
       
  -- Above function can be written as 
  func add(a, b int) int {
          
  }
  

  e.g.

   func location(city string) (state, country string) {
      ...
      ...
      return "BLR", "India"
   }