Go language: len : Get number of items in a map

‘len’ function return number of items in a map.

App.go

package main

import "fmt"

func main() {

 employees := map[int]string{
  1: "Krishna",
  2: "Ram", //Must have trailing comma
 }

 fmt.Println("Map with two elements : ", employees)
 fmt.Println("Total number of Items : ", len(employees))
}

Output

Map with two elements :  map[1:Krishna 2:Ram]

Total number of Items :  2

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