function checkLowerCaseNeeded(value) {
  for (var i = 0; i < value.length; i += 1) {
    var code = value.charCodeAt(i);
    if (code >= 65 && code <= 90) { // [A-Z]
      return true;
    }
  }

  return false;
}
Fast check to avoid calling `toLowerCase` when not needed.

@param {string} value