CompareObjects.js

const compareObjects = (obj1, obj2) => {
  for (let p in obj1) {
    if (obj1.hasOwnProperty(p) !== obj2.hasOwnProperty(p)) return false;
    switch (typeof (obj1[p])) {
      case 'object':
        if (!compareObjects(obj1[p], obj2[p])) return false;
        break;
      case 'function':
        if (typeof (obj2[p]) === 'undefined' || (p !== 'compare' && obj1[p].toString() !== obj2[p].toString())) return false;
        break;
      default:
        if (obj1[p] !== obj2[p]) return false;
    }
  }
  for (let p in obj2) {
    if (typeof (obj1[p]) === 'undefined') return false;
  }
  return true;
};