Function isValidStr

client/shared/utils/string-helper.ts:47–49

(str: unknown)

 * 定义为有长度的字符串
 */
export function isValidStr(str: unknown): str is string {
  return typeof str == 'string' && str !== '';
}

export function isLocalMessageId(str: unknown): boolean {
  if (typeof str !== 'string') {