自定义错误信息

class ZPError extends Error {
  constructor ({ code, message }) {
    // Calling parent constrcutor of base Error class.
    super(message)
    // Capturing stack trace, excluding constructor call from it.
    Error.captureStackTrace && Error.captureStackTrace(this, this.constructor)
    // Saving class name in the property of our custom error as a shortcut.
    this.name = this.constructor.name // 自定义参数
    this.code = code // 自定义参数
  }
}

export default ZPError

使用 👇

throw new ZPError({ code: 400, message: '参数错误' })