Function shallowEqual

lib/assets/react-source/development/react.js:13258–13282

* Performs equality by iterating through keys on an object and returning false * when any key has values which are not strictly equal between the arguments. * Returns true when the values of all keys are strictly equal.

(objA, objB)

	 */

	function shallowEqual(objA, objB) {
	  if (objectIs(objA, objB)) {
	    return true;
	  }

	  if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
	    return false;
	  }

	  var keysA = Object.keys(objA);
	  var keysB = Object.keys(objB);

	  if (keysA.length !== keysB.length) {
	    return false;
	  } // Test for A's keys different from B.


	  for (var i = 0; i < keysA.length; i++) {
	    if (!hasOwnProperty$2.call(objB, keysA[i]) || !objectIs(objA[keysA[i]], objB[keysA[i]])) {
	      return false;
	    }
	  }

	  return true;
	}

	var skipSelectionChangeEvent = canUseDOM && 'documentMode' in document && document.documentMode <= 11;
	var eventTypes$3 = {