JS - Shallow Equal -- If you're using React Redux, you can also `import { shallowEqual } from "react-redux";`.

shallow-equal.ts

type CompareObject = { [key: string]: any };
export default function shallowEqual(objA: CompareObject, objB: CompareObject) {
  if (objA === objB) {
    return true;
  }

  if (!objA || !objB) {
    return false;
  }

  var aKeys = Object.keys(objA);
  var bKeys = Object.keys(objB);
  var len = aKeys.length;

  if (bKeys.length !== len) {
    return false;
  }

  for (var i = 0; i < len; i++) {
    var key = aKeys[i];

    if (
      objA[key] !== objB[key] ||
      !Object.prototype.hasOwnProperty.call(objB, key)
    ) {
      return false;
    }
  }

  return true;
}