12345678910111213141516171819202122
import upperCase from "./upperCase.ts";
/** * Convert a `string` to upper case. * * Example: * * ```ts * upperFirstCase("test string"); * //=> "Test string" * ``` */export default function (str: string, locale?: string): string {  if (str == null) {    return "";  }
  str = String(str);
  return upperCase(str.charAt(0), locale) + str.substr(1);}