Overview

In Golang string are UTF-8 encoded. strings package of GO provides an EqualFold method that can be used to do case insensitive comparison of two strings in Go.

Below is the signature of the function. The methods return boolean indicating whether the two strings supplied are case insensitive equal or not.

func EqualFold(s, t string) bool

Code:

package main

import (
    "fmt"
    "strings"
)

func main() {
    res := strings.EqualFold("abc", "ABC")
    fmt.Println(res)
    
    res = strings.EqualFold("abc", "aBC")
    fmt.Println(res)
    
    res = strings.EqualFold("abc", "AbC")
    fmt.Println(res)
    
    res = strings.EqualFold("abc", "AbCd")
    fmt.Println(res)
}

Output:

true
true
true
false