A Gist that shows how Arrays , maps, slices are done in Golang ...

array_slice.go

func main(){
  //Arrays in Golang
  my_array := [5]int{1,2,3,4,5} // just like othesrs , arrays in go are 0 indexed.
  
  //multidimensional arrys
  matrix := [2][3]int{
    {1,2,3},
    {4,5,6},
  }
  
  //In case the size of array is not known we can use Slices.
  //Slices can be a whole dynamic array as well it can a sits name suggests a part of a well defined array
  allnumber := my_array[:] //in this case allnumber is slice copy of the my_array array , but in this case we can append more values to   allnumber as its a slice .
  //lets say we wanna append a data in the slice
  allnumber := append(allnumber , 6} //works exactly like arraylists in java.
                      
  fruits := []string{}
  fruits = append(fruits, "apple")
                      
  // appending 2 slices together
		morefruits := []string{"mango","banana"}
		morefruits = append(fruits ,morefruits...)									
											
	//Maps in go are key - value pairs
                      name_marks := map[string]int{
                        "sayan":46,
                        "mili":50,
                      }
											
                      //checking if a key is present in the map or not
                      
                      value , exists := name_marks["raj"]
                      if exists {
                        fmt.Printf(" Raj got %d marks ",value)
                      }else{
                        fmt.Print("Raj isnt on the map")
                      }
                
                      
}