Go Systems Programming

Converting an array into a map

This subsection will perform a practical operation, which is converting an array into a map without knowing the size of array in advance. The Go code of array2map.go can be divided into three main parts. The first part is the standard Go code that includes the required packages and the beginning of the main() function:

package main 
 
import ( 
   "fmt" 
   "strconv" 
) 
 
func main() { 

The second part, which implements the core functionality, is as follows:

anArray := [4]int{1, -2, 14, 0} 
aMap := make(map[string]int) 
 
length := len(anArray) 
for i := 0; i < length; i++ { 
   fmt.Printf("%s ", strconv.Itoa(i)) 
   aMap[strconv.Itoa(i)] = anArray[i] 
} 

You first define the array variable and the map variable you will use. The for loop ...