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How to check string contains uppercase lowercase character in Golang?

Checking if any character of given string is Uppercase or Lowercase. The Unicode package's IsLower() and IsUpper() function is used to check each character of given string.

Check any character is uppercase or lowercase 
package main

import (
	"fmt"
	"unicode"
)

func main() {
	word := "Hello World"

	hasUpper := false
	hasLower := false
	for _, r := range word {
		if unicode.IsUpper(r) {
			hasUpper = true
		}
		if unicode.IsLower(r) {
			hasLower = true		
		}
	}
	fmt.Println(hasUpper)
	fmt.Println(hasLower)
}
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