How to compare slices, structs and maps in Golang?

The reflect package in Go provides a very important function called DeepEqual() which can be used to compare composite types. The DeepEqual() function is used when we want to check if two data types are "deeply equal".

Comparing slices

Example 1

Consider the code shown below

package main
import (
   "fmt"
   "reflect"
)
func main() {
   sl := []int{1, 2, 3}
   sl1 := []int{1, 2, 3}
   fmt.Println(reflect.DeepEqual(sl, sl1))
}

Output

If we run the command go run main.go on the above code, then we will get the following output in the terminal.

true

Comparing maps

Example 2

Consider the code shown below.

package main
import (
   "fmt"
   "reflect"
)
func main() {
   m1 := make(map[string]int)
   m1["rahul"] = 10
   m1["mukul"] = 11
   m2 := make(map[string]int)
   m2["rahul"] = 10
   m2["mukul"] = 11
   fmt.Println(reflect.DeepEqual(m1, m2))
}

Output

If we run the command go run main.go on the above code, then we will get the following output in the terminal.

true

Comparing structs

Example 3

Consider the code shown below.

package main
import (
   "fmt"
   "reflect"
)
type Person struct {
   name string
   age int
}
func main() {
   p1 := Person{name: "TutorialsPoint", age: 10}
   p2 := Person{name: "TutorialsPoint", age: 10}
   fmt.Println(reflect.DeepEqual(p1, p2))
}

Output

If we run the command go run main.go on the above code, then we will get the following output in the terminal.

true

Mukul Latiyan

Updated on 21-Feb-2022 08:09:20

• Related Questions & Answers
• How to concatenate two slices in Golang?
• How to compare two strings in Golang?
• How to work with Structs in JavaScript?
• Structs in Rust Programming
• Structs in Arduino program
• Maps in JavaScript takes keys and values array and maps the values to the corresponding keys
• Arithmetic Slices in C++
• Slices in Rust Programming
• How to work with Maps in Kotlin?
• How to transform JavaScript arrays using maps?
• How to initialize and compare strings?
• How to Add Google Maps to a Website?
• Maps in Dart Programming
• Arithmetic Slices II - Subsequence in C++
• Pizza With 3n Slices in C++