Extended error

qerror.js

/**
 * @class QError
 */
class QError extends Error {
  /**
   * @param {string} message
   * @param {string} [type=error]
   * @param {Object} [cause=null] - extra data for debugging
   */
  constructor(message, type = 'error', cause = null) {
    super(message);
    this.name = 'QError';
    this.type = type;
    this.cause = cause;
    if (typeof Error.captureStackTrace === 'function') {
      Error.captureStackTrace(this, this.constructor);
    } else {
      this.stack = (new Error(message)).stack;
    }
  }
}

module.exports = QError;