kibana-123/src/ui/public/notify/errors.js

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

import _ from 'lodash';
let errors = {};

let canStack = (function () {
  let err = new Error();
  return !!err.stack;
}());

// abstract error class
_.class(KibanaError).inherits(Error);
function KibanaError(msg, constructor) {
  this.message = msg;

  Error.call(this, this.message);
  if (!this.stack) {
    if (Error.captureStackTrace) {
      Error.captureStackTrace(this, constructor || KibanaError);
    } else if (canStack) {
      this.stack = (new Error()).stack;
    } else {
      this.stack = '';
    }
  }
}
errors.KibanaError = KibanaError;

export default errors;