Function Distance

strings/hamming/hammingdistance.go:18–31

(str1, str2 string)

import "errors"

func Distance(str1, str2 string) (int, error) {
	if len(str1) != len(str2) {
		return -1, errors.New("strings must have a same length")
	}

	hammingDistance := 0
	for i := 0; i < len(str1); i++ {
		if str1[i] != str2[i] {
			hammingDistance++
		}
	}

	return hammingDistance, nil
}