text: export const isEqual = (a, b) => {
  	if (a === b) return true;
  	if (a instanceof Date && b instanceof Date)
  		return a.getTime() === b.getTime();
  	if (!a || !b || (typeof a !== 'object' && typeof b !== 'object'))
  		return a === b;
  	if (a === null || a === undefined || b === null || b === undefined)
  		return false;
  	if (a.prototype !== b.prototype) return false;
  	let keys = Object.keys(a);
  	if (keys.length !== Object.keys(b).length) return false;
  	return keys.every(k => isEqual(a[k], b[k]));
  };
  