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How to compare two strings in Golang?
Golang has a built-in string function called Compare() that we can use to compare two strings. Here strings are compared using the lexicographical order.
Syntax
func Compare(a, b string) int
Return Types
- If the strings (a == b), it returns 0.
- If the strings (a > b), then it returns 1
- If the strings (a < b), then it returns -1
Example
Let us consider the following example −
package main
// importing fmt and strings
import (
"fmt"
"strings"
)
func main() {
// Intializing the variables
var a1 = "a"
var a2 = "b"
var a3 = "welcome"
var a4 = "Golang"
// using the Compare function
// a1 < a2; it will return -1
fmt.Println(strings.Compare(a1, a2))
// a2 > a1; it will return 1
fmt.Println(strings.Compare(a2, a1))
// a3 > a4; it will return 1
fmt.Println(strings.Compare(a3, a4))
// a4 < a3; it will return -1
fmt.Println(strings.Compare(a4, a3))
// a1 == a1; it will return 0
fmt.Println(strings.Compare(a1, a1))
}Output
Let us consider the following example −
-1 1 1 -1 0
Example
In this example, we are going to use an if condition along with the Compare() function to check whether the two strings are same or not.
package main
import (
"fmt"
"strings"
)
func main() {
// Intializing the variables
A := "Golang on Tutorialspoint"
B := "Golang on Tutorialspoint"
// using the Compare function
if strings.Compare(A, B) == 0 {
fmt.Println("Both the strings match.")
} else {
fmt.Println("The strings do not match.")
}
}Output
As both the strings are equal, the program will generate the following output −
Both the strings match.
Updated on: 10-Mar-2022
4K+ Views
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