How to check equality of slices of bytes in Golang?

In Go language slice is more powerful, flexible, convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence which stores elements of a similar type, you are not allowed to store different type of elements in the same slice.
In the Go slice of byes, you are allowed to check the equality of the slices with the help of Equal() function. This function returns true if both the slices are equal, or return false if both the slices are not equal. It is defined under the bytes package so, you have to import bytes package in your program for accessing Equals function.

Syntax:

func Equal(slice_1, slice_1 []byte) bool

Here, we check the equality between slice_1 and slice_2 and the return type of this function is bool. Let us discuss this concept with the help of the examples:



Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Go program to illustrate how to
// check the equality of the slices
package main
  
import (
    "bytes"
    "fmt"
)
  
func main() {
  
    // Creating and initializing slices of bytes
    // Using shorthand declaration
  
    slice_1 := []byte{'A', 'N', 'M', 'A',
                      'P', 'A', 'A', 'W'}
      
    slice_2 := []byte{'A', 'N', 'M', 'A',
                      'P', 'A', 'A', 'W'}
  
    // Checking the equality of the slices
    // Using Equal function
    res := bytes.Equal(slice_1, slice_2)
      
    if res == true {
      
        fmt.Println("Slice_1 is equal to Slice_2")
    } else {
      
        fmt.Println("Slice_1 is not equal to Slice_2")
    }
  
}

chevron_right


Output:

Slice_1 is equal to Slice_2

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Go program to illustrate how to
// check the equality of the slices
package main
  
import (
    "bytes"
    "fmt"
)
  
func main() {
  
    // Creating and initializing 
    // slices of bytes
    // Using shorthand declaration
    slice_1 := []byte{'A', 'N', 'M',
            'A', 'P', 'A', 'A', 'W'}
      
    slice_2 := []byte{'g', 'e', 'e', 'k', 's'}
      
    slice_3 := []byte{'A', 'N', 'M', 'A',
                      'P', 'A', 'A', 'W'}
  
    // Checking the equality of the slices
    // Using Equal function
    res1 := bytes.Equal(slice_1, slice_2)
    res2 := bytes.Equal(slice_1, slice_3)
    res3 := bytes.Equal(slice_2, slice_3)
    res4 := bytes.Equal([]byte("GeeksforGeeks"),
                        []byte("GeeksforGeeks"))
    res5 := bytes.Equal([]byte("Geeks"), []byte("GFG"))
    res6 := bytes.Equal(slice_1, []byte("P"))
  
    // Displaying results
    fmt.Println("Result 1:", res1)
    fmt.Println("Result 2:", res2)
    fmt.Println("Result 3:", res3)
    fmt.Println("Result 4:", res4)
    fmt.Println("Result 5:", res5)
    fmt.Println("Result 6:", res6)
  
}

chevron_right


Output:

Result 1: false
Result 2: true
Result 3: false
Result 4: true
Result 5: false
Result 6: false



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.