How to copy elements from one Map to another Map in Go Lang ?

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#JavaInspires

How to copy elements from one Map to another Map in Go Lang ?

Program to copy elements one map to another map in go language.

Here, we are using for loop to copy each element to another map. 

// golang program to copy elements one map to another map
package main

import "fmt"

func main() {

	// create a map using shorthand declaration
	map1 := make(map[string]int)

	// add elements to the map
	map1["john"] = 22
	map1["erik"] = 25
	map1["sean"] = 24
	map1["clark"] = 26

	// print map1
	fmt.Println("map1 :", map1)

	// create empty map
	map2 := make(map[string]int)

	// iterate map1 and copy each element to map2

	for i, e := range map1 {
		map2[i] = e
	}
	// print map2
	fmt.Println("map2 :", map2)
}

PS C:\DEVD\WORK\golang\example-programs> go run .\copymapexample.go
map1 : map[clark:26 erik:25 john:22 sean:24]
map2 : map[clark:26 erik:25 john:22 sean:24]
PS C:\DEVD\WORK\golang\example-programs>