reflect.DeepEqual() Function in Golang with Examples

Last Updated : 28 Apr, 2020

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.DeepEqual() Function in Golang is used to check whether x and y are “deeply equal” or not. To access this function, one needs to imports the reflect package in the program.

Syntax:
func DeepEqual(x, y interface{}) bool
Parameters: This function takes two parameters with value of any type, i.e. x, y.

Return Value: This function returns the boolean value.

Below examples illustrate the use of above method in Golang:

Example 1:

// Golang program to illustrate 
// reflect.DeepEqual() Function  
  
package main 
  
import ( 
    "fmt"
    "reflect"
) 
  
  
// Main function  
func main() {  
  
    map_1 := map[int]string{  
    
        200: "Anita",  
        201: "Neha",  
        203: "Suman",  
        204: "Robin",  
        205: "Rohit",  
    }  
    map_2 := map[int]string{  
    
        200: "Anita",  
        201: "Neha",  
        203: "Suman",  
        204: "Robin",  
        205: "Rohit", 
    }  
      
    // DeepEqual is used to check 
    // two interfaces are eual or not 
    res1 := reflect.DeepEqual(map_1, map_2) 
    fmt.Println("Is Map 1 is equal to Map 2: ", res1) 
} 

Output:

Is Map 1 is equal to Map 2:  true

Example 2:

// Golang program to illustrate 
// reflect.DeepEqual() Function  
  
package main 
  
import ( 
    "fmt"
    "reflect"
) 
  
  
// Main function  
func main() {  
  
    src := reflect.ValueOf([]int{10, 20, 32}) 
    dest := reflect.ValueOf([]int{1, 2, 3}) 
      
    cnt := reflect.Copy(dest, src) 
    cnt+=1 
      
    // DeepEqual is used to check 
    // two interfaces are eual or not 
    res1 := reflect.DeepEqual(src, dest ) 
    fmt.Println("Is dest is equal to src: ", res1) 
} 

Output:

Is dest is equal to src:  false

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