mana-common/lib/objects.js

Common utils for mana

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getPropertyDescriptor = getPropertyDescriptor;
exports.isPlainObject = isPlainObject;

function getPropertyDescriptor(o, propertyName) {
  let proto = o;
  let descriptor = undefined;

  while (proto && !descriptor) {
    descriptor = Object.getOwnPropertyDescriptor(proto, propertyName);
    proto = Object.getPrototypeOf(proto);
  }

  return descriptor;
}

function isPlainObject(obj) {
  if (typeof obj !== 'object' || obj === null || // window/navigator/Global
  Object.prototype.toString.call(obj) !== '[object Object]') return false;
  const proto = Object.getPrototypeOf(obj);

  if (proto === null) {
    return true;
  }

  const ctor = proto.hasOwnProperty('constructor') && proto.constructor;
  return typeof ctor == 'function' && ctor instanceof ctor && ctor.toString() === Object.toString();
}