Cek IsUpperCase

💡 8 kyu

🕐 x menit

✏️ Aku belajar tanpa pake libs

Problem

MyString("ABCDEFGHIJKLMNOPQRSTUVWXYz").IsUpperCase()
// false

MyString("WHAT DOES THE FOX SAY").IsUpperCase()
// true

Solution

type MyString string

func (s MyString) IsUpperCase() bool {
	res := false

	for _, v := range s {
		if string(v) == " " {
			continue
		}

		if v >= 'A' && v <= 'Z' {
			res = true
		} else {
			return false
		}
	}

	return res
}

Best Solution

import "strings"

type MyString string

func (s MyString) IsUpperCase() bool {
  return string(s) == strings.ToUpper(string(s))
}