如何打印JSON对象和JSON字符串

/**
 * 打印JSON对象和JSON字符串
 * @param obj
 */
static print(obj: object | string) {
  try {
    if (typeof obj === 'object') {
      let str = JSON.stringify(obj, null, 2)
      let arr: string[] = str.split('\n')
      for (let index = 0; index < arr.length; index++) {
        console.debug(arr[index])
      }
    } else {
      obj = JSON.parse(obj)
      let str = JSON.stringify(obj, null, 2)
      let arr = str.split('\n')
      for (let index = 0; index < arr.length; index++) {
        console.debug(arr[index])
      }
    }
  } catch (err) {
    let error = err as BusinessError; //异常了，说明不是JSON字符串
    console.error(`LogUtil-print-异常 ~ code: ${error.code} -·- message: ${error.message}`);
  }
}